{"id":30783,"date":"2019-06-25T13:18:32","date_gmt":"2019-06-25T07:48:32","guid":{"rendered":"https:\/\/cracku.in\/blog\/?p=30783"},"modified":"2019-06-25T13:18:32","modified_gmt":"2019-06-25T07:48:32","slug":"time-and-work-questions-for-rrb-ntpc-set-2-pdf","status":"publish","type":"post","link":"https:\/\/cracku.in\/blog\/time-and-work-questions-for-rrb-ntpc-set-2-pdf\/","title":{"rendered":"Time and Work Questions for RRB NTPC Set-2 PDF"},"content":{"rendered":"

Time and Work Questions for RRB NTPC Set-2 PDF<\/strong><\/span><\/h2>\n

Download RRB NTPC Time and Work Questions and Answers\u00a0 Set-2 PDF. Top 15 RRB NTPC Time and Work questions based on asked questions in previous exam papers very important for the Railway NTPC exam.<\/p>\n

Download Time and Work Questions for RRB NTPC Set-2 PDF<\/a><\/p>\n\n

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Download RRB NTPC Previous Papers PDF<\/a><\/p>\n

Question 1:\u00a0<\/b>A and B can complete a piece of work in 6 and 12 days separately. If they work jointly, how long will they take to complete this piece of work ?<\/p>\n

a)\u00a09 days<\/p>\n

b)\u00a018 days<\/p>\n

c)\u00a06 days<\/p>\n

d)\u00a04 days<\/p>\n

Question 2:\u00a0<\/b>A pipe can fill a tank in 6 hours and an outlet to the tank can fill it in 8 hours. If Both the valves were opened at 8:00 am in the morning but after sometime outlet valve was closed. It is seen that tank was full at 5:00 pm. At what time was outlet valve closed?<\/p>\n

a)\u00a01:00 pm<\/p>\n

b)\u00a02:00 pm<\/p>\n

c)\u00a011:00 am<\/p>\n

d)\u00a012:00 pm<\/p>\n

Question 3:\u00a0<\/b>A train runs at the speed of 72 Km per hour The distance between any two stations is 42 km and the train stops at each stations for 5 minutes. Then the time taken by train to go 350 km is<\/p>\n

a)\u00a06 hours 31 minutes 40 seconds<\/p>\n

b)\u00a05 hours 31 minutes<\/p>\n

c)\u00a05 hours 31 minutes 40 seconds<\/p>\n

d)\u00a05 hours 30 minutes 40 seconds<\/p>\n

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Question 4:\u00a0<\/b>A train of length 600 m is travelling at a speed of 54 kmph. A person is running on a platform in the direction opposite to that of the train at a speed of 5 m\/s. Find the time taken by the train to cross the person?<\/p>\n

a)\u00a020 seconds<\/p>\n

b)\u00a030 seconds<\/p>\n

c)\u00a040 seconds<\/p>\n

d)\u00a01 minute<\/p>\n

Question 5:\u00a0<\/b>10 men and 20 women finish a work in 20 days. If each man does twice the amount of work done by a woman, how many men will be required to complete the work in 1 day?<\/p>\n

a)\u00a0200 men<\/p>\n

b)\u00a0400 men<\/p>\n

c)\u00a0100 men<\/p>\n

d)\u00a0800 men<\/p>\n

Question 6:\u00a0<\/b>Ram and Krishna can together complete a piece of work in 40 days. Ram alone can complete the work in 60 days. How long will Krishna take to complete the work if he is working alone?<\/p>\n

a)\u00a030 days<\/p>\n

b)\u00a060 days<\/p>\n

c)\u00a090 days<\/p>\n

d)\u00a0120 days<\/p>\n

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Question 7:\u00a0<\/b>In a journey of 1200 km, a car was slowed down by bad roads. Its average speed for the trip was reduced by 10 kmph and the time of travel was increased by 4 hours. The total journey time in this case was<\/p>\n

a)\u00a015 hours<\/p>\n

b)\u00a020 hours<\/p>\n

c)\u00a024 hours<\/p>\n

d)\u00a030 hours<\/p>\n

Question 8:\u00a0<\/b>Chetan can do a piece of work in 10 days and Dhanush can do the same work in 15 days. They work together for 5 days. The fraction of work left is<\/p>\n

a)\u00a01\/6<\/p>\n

b)\u00a01\/8<\/p>\n

c)\u00a01\/3<\/p>\n

d)\u00a01\/4<\/p>\n

Question 9:\u00a0<\/b>A train of length 50 meters travelling at 100 kmph crosses another train of length 100 m travelling in the same direction in 7.5 seconds. What is the approximate time taken by the second train to cross a pole?<\/p>\n

a)\u00a043 seconds<\/p>\n

b)\u00a033 seconds<\/p>\n

c)\u00a023 seconds<\/p>\n

d)\u00a013 seconds<\/p>\n

Download General Science Notes PDF<\/a><\/p>\n

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Question 10:\u00a0<\/b>A tap can fill an empty tank in 4 hours. Another tap can empty a full tank in 6 hours. If both the taps are opened, what is the time taken by an empty tank to get filled?<\/p>\n

a)\u00a012 hours<\/p>\n

b)\u00a015 hours<\/p>\n

c)\u00a09 hours<\/p>\n

d)\u00a08 hours<\/p>\n

Question 11:\u00a0<\/b>18 persons can do a piece of work in 150 days. In how many days can 108 persons complete the same piece of work?<\/p>\n

a)\u00a030<\/p>\n

b)\u00a025<\/p>\n

c)\u00a020<\/p>\n

d)\u00a015<\/p>\n

Question 12:\u00a0<\/b>P and Q can complete a piece of work in 40 days and 120 days respectively. If they work together, in how many days will the same piece of work be completed?<\/p>\n

a)\u00a0160<\/p>\n

b)\u00a015<\/p>\n

c)\u00a020<\/p>\n

d)\u00a030<\/p>\n

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Question 13:\u00a0<\/b>The speed of a car, excluding stoppages, is 80 kmph. Including stoppages, the speed of the car is 50kmph. For how many minutes does the car stop per hour?<\/p>\n

a)\u00a015<\/p>\n

b)\u00a022.5<\/p>\n

c)\u00a030<\/p>\n

d)\u00a037.5<\/p>\n

Question 14:\u00a0<\/b>If A and B together can complete a piece of work in 18 days, B and C together can complete the same piece of work in 36 days and C and A together can complete the same piece of work in 24 days, then in how many days can A, B and C together can complete the same piece of work?<\/p>\n

a)\u00a08<\/p>\n

b)\u00a012<\/p>\n

c)\u00a014<\/p>\n

d)\u00a016<\/p>\n

Question 15:\u00a0<\/b>A and B can do a piece of work in 10 days and 15 days respectively. In how many days will they complete the same work if they work together?<\/p>\n

a)\u00a06 days<\/p>\n

b)\u00a05 days<\/p>\n

c)\u00a07 days<\/p>\n

d)\u00a08 days<\/p>\n

Download Current Affairs Questions & Answers PDF<\/a><\/p>\n\n

Answers & Solutions:<\/strong><\/span><\/p>\n

1)\u00a0Answer\u00a0(D)<\/strong><\/p>\n

Time taken when they work together = $ \\frac {1}{\\frac{1}{6}+\\frac{1}{12}}$<\/p>\n

= 4 days<\/p>\n

2)\u00a0Answer\u00a0(D)<\/strong><\/p>\n

Work done in an hour when both pipe were opened = $\\frac{1}{6} – \\frac{1}{8} = \\frac{1}{24}$<\/p>\n

Let\u2019s say after x hours outlet pipe was closed, so total tank filled in that time = $\\frac{x}{24}$
\nAfter that for remaining (9-x) hours, tank filled = $\\frac{(9-x)}{6}$
\nHence, $\\frac{x}{24}$ + $\\frac{(9-x)}{6}$ = 1
\nNow after solving for x, x=4 hours
\nSo answer will be d<\/p>\n

3)\u00a0Answer\u00a0(C)<\/strong><\/p>\n

-Number of stations in 350 kilometers = 350\/ 42 = 50\/6 = 8 stations.<\/p>\n

Time stopped at stations = 8 x 5 = 2\/3 hrs<\/p>\n

Time taken for travel = 350\/72 + 2\/3 =\u00a05 hours 31 minutes 40 seconds<\/p>\n

4)\u00a0Answer\u00a0(B)<\/strong><\/p>\n

Relative distance to be covered = length of the train = 600 m
\nRelative speed = Speed of the train + Speed of the person (opposite direction)
\n= 54 * 5\/18 m\/s + 5 m\/s = 15 + 5 = 20 m\/s
\nSo, time taken = 600\/20 = 30 seconds<\/p>\n

5)\u00a0Answer\u00a0(B)<\/strong><\/p>\n

Work done by 2 women = Work done by 1 man
\nWork done by 20 women = Work done by 10 men
\nSo, 10 men + 10 men = 20 men take 20 days to finish the work
\nSo, to complete it in 1 day, the number of men required = 20*20 = 400<\/p>\n

6)\u00a0Answer\u00a0(D)<\/strong><\/p>\n

Let the number of days taken by Krishna to complete the work be N.
\nRam\u2019s one-day work + Krishna\u2019s one-day work = 1\/60 + 1\/N
\nTotal one day work = 1\/40
\n=> 1\/60 + 1\/N = 1\/40 => 1\/N = 1\/40 – 1\/60 = 1\/120<\/p>\n

=> N = 120 days<\/p>\n

7)\u00a0Answer\u00a0(C)<\/strong><\/p>\n

Let the usual speed be s.
\nSo, time of journey = 1200\/s
\nReduced speed = s-10
\nTime of journey = 1200\/(s-10)
\nSo, 1200\/(s-10) – 1200\/s = 4
\nSolving, we get, s = 60 kmph
\nSo, time of journey = 1200\/60 = 20 hours
\nTime of journey in this case = 24 hours<\/p>\n\n

8)\u00a0Answer\u00a0(A)<\/strong><\/p>\n

Chetan\u2019s one-day work = 1\/10
\nDhanush\u2019s one-day work = 1\/15
\nOne-day work of Chetan + Dhanush = 1\/10 + 1\/15 = 10\/60 = 1\/6<\/p>\n

So, number of days required to complete the work = 1\/(1\/6) = 6 days
\nSo, after 5 days, the fraction of work remaining = (6-5)\/6 = 1\/6<\/p>\n

9)\u00a0Answer\u00a0(D)<\/strong><\/p>\n

Let the speed of the second train be \u2018s\u2019.
\nCase 1: Relative speed = 100 – s
\nRelative distance = 50 m + 100 m = 150 m
\nTime taken = 7.5 seconds
\nRelative speed = Relative distance \/ time = 150 \/ 7.5 = 20 m\/s = 72 kmph
\nSo, speed of the second train = 28 kmph = 7.77 m\/s
\nTime taken by the second train to cross a pole = Relative distance \/ Speed
\n= 100\/7.77 = 12.85 seconds = 13 seconds approximately<\/p>\n

10)\u00a0Answer\u00a0(A)<\/strong><\/p>\n

1st tap\u2019s 1 hour work = \u00bc
\n2nd tap\u2019s 1 hour work = -1\/6
\nOne hour work of both the taps together = \u00bc – 1\/6 = 1\/12<\/p>\n

So, time taken to fill an empty tank = 1\/(1\/12) = 12 hours<\/p>\n

11)\u00a0Answer\u00a0(B)<\/strong><\/p>\n

Total work = 18 * 150
\n108 persons can complete it in $\\frac{18*150}{108}$
\n= $\\frac{150}{6}$ = 25 days<\/p>\n

12)\u00a0Answer\u00a0(D)<\/strong><\/p>\n

Let the total work be x.
\nP completes $\\frac{x}{40}$ work every day.
\nQ completes $\\frac{x}{120}$ work every day.
\nP + Q => $\\frac{x}{40}$ + $\\frac{x}{120}$ = $\\frac{1}{30}$
\n=> P and Q together will take 30 days to complete the work.<\/p>\n

13)\u00a0Answer\u00a0(B)<\/strong><\/p>\n

In 1 hour the car can travel 80 km if stoppages are excluded.
\nIn the same time, the care can travel only 50 km if stoppages are included.
\n=> 30 km less because of stoppages
\nTime taken to cover 30km = $\\frac{30}{80}$ = 0.375 hours = 0.375 * 60 minutes = 22.5 minutes<\/p>\n

14)\u00a0Answer\u00a0(D)<\/strong><\/p>\n

$\\frac{1}{a} + \\frac{1}{b}$ = $\\frac{1}{18}$
\n$\\frac{1}{a} + \\frac{1}{c}$ = $\\frac{1}{24}$
\n$\\frac{1}{b} + \\frac{1}{c}$ = $\\frac{1}{36}$
\n=> 2($\\frac{1}{a} + \\frac{1}{b} + \\frac{1}{c}$) = $\\frac{1}{18}$ + $\\frac{1}{24}$ + $\\frac{1}{36}$ = $\\frac{1}{8}$
\n=> ($\\frac{1}{a} + \\frac{1}{b} + \\frac{1}{c}$) = $\\frac{1}{16}$
\n=> It takes 16 days for A, B and C together to complete the work.<\/p>\n

15)\u00a0Answer\u00a0(A)<\/strong><\/p>\n

A’s 1 day work = 1\/10
\nB’s 1 day work = 1\/15
\n(A+B)’s 1 day work = 1\/10 + 1\/15 = 5\/30 = 1\/6
\nHence they will take 6 days to complete the same work.<\/p>\n\n

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We hope this Time and Work Questions Set-2 for RRB NTPC Exam will be highly useful for your Preparation.<\/p>\n","protected":false},"excerpt":{"rendered":"

Time and Work Questions for RRB NTPC Set-2 PDF Download RRB NTPC Time and Work Questions and Answers\u00a0 Set-2 PDF. Top 15 RRB NTPC Time and Work questions based on asked questions in previous exam papers very important for the Railway NTPC exam. Take a free mock test for RRB NTPC Download RRB NTPC Previous […]<\/p>\n","protected":false},"author":41,"featured_media":30785,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_mi_skip_tracking":false,"footnotes":""},"categories":[169,125,31,1603,1601],"tags":[491,1637,1647,1619,1623],"class_list":{"0":"post-30783","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-downloads","8":"category-featured","9":"category-railways","10":"category-rrb-ntpc","11":"category-rrb-ntpc-je","12":"tag-rrb","13":"tag-rrb-exam","14":"tag-rrb-mocks","15":"tag-rrb-ntpc-2019","16":"tag-rrb-ntpc-maths"},"better_featured_image":{"id":30785,"alt_text":"Time and Work Questions for RRB NTPC Set-2 PDF","caption":"Time and Work Questions for RRB NTPC Set-2 PDF","description":"Time and Work Questions for RRB NTPC Set-2 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