{"id":31782,"date":"2019-07-17T18:38:56","date_gmt":"2019-07-17T13:08:56","guid":{"rendered":"https:\/\/cracku.in\/blog\/?p=31782"},"modified":"2019-07-17T18:39:08","modified_gmt":"2019-07-17T13:09:08","slug":"trains-problems-for-rrb-ntpc-pdf","status":"publish","type":"post","link":"https:\/\/cracku.in\/blog\/trains-problems-for-rrb-ntpc-pdf\/","title":{"rendered":"Trains Problems for RRB NTPC PDF"},"content":{"rendered":"

Trains Problems for RRB NTPC PDF<\/strong><\/span><\/h1>\n

Download RRB NTPC Trains Problems Questions and Answers PDF. Top 15 RRB NTPC Trains Problems questions based on asked questions in previous exam papers very important for the Railway NTPC exam.<\/p>\n

Download Trains Problems for RRB NTPC PDF<\/a><\/p>\n\n

Take a free mock test for RRB NTPC<\/a><\/p>\n

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

Question 1:\u00a0<\/b>A frog jumps back and forth on two close moving trains of same length 140 meters moving at speeds 60kmph and 78 kmph in the same direction. If both the engines are next to each other when the frog starts jumping and initially the frog is at the starting point on the engine. It can jump only in the direction perpendicular to the train\u2019s movement. It takes 1 second to jump from one train to the other, stays there for 2 seconds and jumps back. What is the distance travelled by the frog in the direction of the movement of trains until the trains pass each other?<\/p>\n

a)\u00a0a<\/p>\n

b)\u00a0b<\/p>\n

c)\u00a0345 meters<\/p>\n

d)\u00a0d<\/p>\n

Question 2:\u00a0<\/b>Two trains, one 150 m long and the other 130 m long, coming from opposite directions
\ncrossed each other in 7.2 seconds. The sum of speed of the two trains every hour would then be:<\/p>\n

a)\u00a0280 km<\/p>\n

b)\u00a0105 km<\/p>\n

c)\u00a070 km<\/p>\n

d)\u00a0140 km<\/p>\n

Question 3:\u00a0<\/b>A Train leaves Kazipet at 5 a.m. and reaches Bangalore at 3 p.m. Another train leaves
\nBangalore at 7 a.m. and reaches Kazipet at 5 p.m. When do the twotrains meet? Assume that the trains travels at equal uniform speeds.<\/p>\n

a)\u00a01 p.m.<\/p>\n

b)\u00a012 noon<\/p>\n

c)\u00a011 a.m.<\/p>\n

d)\u00a010 a.m.<\/p>\n

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

FREE RRB NTPC YOUTUBE VIDEOS<\/a><\/p>\n

Instructions<\/b><\/p>\n

Question 4:\u00a0<\/b>Two trains start from stations A and B which are 280 km apart towards each other with their speeds in the ratio of 2:5.If they meet after 1 hour 20 minutes then what is the difference between the speeds ?<\/p>\n

a)\u00a045 km\/hr<\/p>\n

b)\u00a060 km\/hr<\/p>\n

c)\u00a075 km\/hr<\/p>\n

d)\u00a090 km\/hr<\/p>\n

Instructions<\/b><\/p>\n

Question 5:\u00a0<\/b>Two trains start from stations A and B which are 200 km apart towards each other with their speeds in the ratio of 1:2.If they meet after 2 hours 40 minutes then what is the difference between the speeds ?<\/p>\n

a)\u00a015 km\/hr<\/p>\n

b)\u00a020 km\/hr<\/p>\n

c)\u00a025 km\/hr<\/p>\n

d)\u00a030 km\/hr<\/p>\n

Question 6:\u00a0<\/b>The ratio between the speeds of two trains is 3 : 4. The second train runs 800 km in 5 hrs, and speed of first train is:<\/p>\n

a)\u00a0120 km\/hrs<\/p>\n

b)\u00a0140 km\/hrs<\/p>\n

c)\u00a0180 km\/hrs<\/p>\n

d)\u00a0160 km\/hrs<\/p>\n

RRB NTPC Free Mock Test<\/a><\/p>\n\n

Question 7:\u00a0<\/b>Two trains 85 m and 155 m long, run at the speeds of 62 km\/h and 82 km\/h respectively, in opposite directions on parallel tracks. The time which they take to cross each other is:<\/p>\n

a)\u00a04 seconds<\/p>\n

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

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

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

Question 8:\u00a0<\/b>Two trains start at the same time, P from A to B and Q from B to A.If they arrive at B and A,respectively, $2\\frac{1}{2}$ hours and 10 hours after they passed each other, and the speed of P is 90 km\/hr, then the speed of Q in kin\/hr is?<\/p>\n

a)\u00a080<\/p>\n

b)\u00a075<\/p>\n

c)\u00a045<\/p>\n

d)\u00a060<\/p>\n

Question 9:\u00a0<\/b>Two trains running in opposite directions cross a man standing on the platform in 25 seconds and 32 seconds respectively and they cross each other in 30 seconds. The ratio of their speed is:<\/p>\n

a)\u00a04 : 3<\/p>\n

b)\u00a02 : 5<\/p>\n

c)\u00a05 : 6<\/p>\n

d)\u00a01 : 3<\/p>\n

Question 10:\u00a0<\/b>The ratio of length of two trains is 6 : 5 and theratio of their speed is 3 : 2 The ratio of time taken by them to cross a pole is:<\/p>\n

a)\u00a03 : 5<\/p>\n

b)\u00a04 : 5<\/p>\n

c)\u00a05 : 6<\/p>\n

d)\u00a05 : 8<\/p>\n

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

Question 11:\u00a0<\/b>Speeds of two trains are in the ratio of 2 : 5. If the speed of the faster train is 120 kmph, find the difference between their speeds.<\/p>\n

a)\u00a056 kmph<\/p>\n

b)\u00a048 kmph<\/p>\n

c)\u00a072 kmph<\/p>\n

d)\u00a084 kmph<\/p>\n

Question 12:\u00a0<\/b>Speeds of two trains are in the ratio of 4 : 3. If the faster train travels 800 km in 4 hours, find the speed of the slower train.<\/p>\n

a)\u00a0120 km\/hr<\/p>\n

b)\u00a0180 km\/hr<\/p>\n

c)\u00a0150 km\/hr<\/p>\n

d)\u00a0200 km\/hr<\/p>\n

Question 13:\u00a0<\/b>Two trains, one 153 m long and the other 127 m long; coming from opposite directions crossed each other in 7.2 seconds. The combined speed of the two trains every hour would then be:<\/p>\n

a)\u00a0140 km\/h<\/p>\n

b)\u00a0105 km\/h<\/p>\n

c)\u00a070 km\/h<\/p>\n

d)\u00a0280 km\/h<\/p>\n

Question 14:\u00a0<\/b>Two trains are running on two parallel tracks with speeds 48 km\/hr and 30 km\/hr. The faster train passes a man standing in the slower train in 22 seconds. Then find the length of the faster train.<\/p>\n

a)\u00a0220 m<\/p>\n

b)\u00a0110 m<\/p>\n

c)\u00a0150 m<\/p>\n

d)\u00a0200 m<\/p>\n

Question 15:\u00a0<\/b>Two trains A and B start from Town X and Y going towards Y and X respectively. Towns X and Y are 900 kms apart and it takes A 9 hours to travel between X and Y. A starts at 6:00 am while B starts at 8:00 am. The ratio of speeds of A and B is 5:4. The trains cross each other at point P and then stay at Y and X respectively. The next day, B starts from X at 6:00 am while A starts from\u00a0Y at 8:00 am. The trains cross each other at point Q. Find the distance between points P and Q.<\/p>\n

a)\u00a0110<\/p>\n

b)\u00a0125<\/p>\n

c)\u00a0100<\/p>\n

d)\u00a0150<\/p>\n

RRB NTPC Free Mock Test<\/a><\/p>\n

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

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

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

The frog jumps back and forth<\/p>\n

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

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

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

let the speeds be 2x and 5x.
\nAs both the trains are moving towards each other their relative velocity will be 2x+5x=7x
\nTherefore 280\/7x =4\/3
\nx=120\/4
\nx=30 km\/hr
\ndIfference=5x-2x
\n=3x
\n=90 km\/hr<\/p>\n

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

let the speeds be x and 2x.
\nAs both the trains are moving towards each other their relative velocity will be x+2x=3x
\nTherefore 200\/3x =8\/3
\nx=200\/8
\nx=25 km\/hr
\ndIfference=2x-x
\n=x
\n=25 km\/hr<\/p>\n

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

Speed of second train = $\\frac{800}{5}=160$ km\/hr<\/p>\n

Ratio of speeds of first train to second train = 3\u00a0: 4<\/p>\n

=> Speed of first train = $\\frac{3}{4}\\times160=120$ km\/hr<\/p>\n

=> Ans – (A)<\/p>\n

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

As both are travelling in opposite directions relative velocity=62+82=144 km\/hr
\n144*5\/18 =40 m\/s
\nTotal distance=155+95
\n=240 m
\nTime taken=240\/40
\n=6 sec<\/p>\n

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

Let the distance between A and B be ‘d’
\nspeed of Q be q
\n‘t’ be the time taken for them to meet
\nd\/(90+q) =t
\nd\/(t+10)=q
\nd\/(t+(5\/2))=90
\nd=90t+225
\nd=90t+qt
\nd=qt+10q
\nqt=225
\nq=9t
\n$t^{2}$=25
\nt=5 hours
\nq=9*5=45 km\/hr<\/p>\n

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

Time taken by train-1 to cross the man = 25 seconds
\nTime taken by train-2 to cross the man = 32 seconds
\nTime taken by trains to cross each other = 30 seconds<\/p>\n


\nHence, Ratio of their speeds = 2 :\u00a05.<\/figure>\n

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

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

Let the speeds of the trains be 2x kmph and 5x kmph
\nGiven that the speed of the faster train = 120 kmph
\n5x = 120
\n\u21d2 x = 24
\nDifference between their speeds = 5x – 2x = 3x = 3*24 = 72 kmph.<\/p>\n

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

Speed of the faster train = 800\/4 = 200 km\/hr
\nFaster train: 4 \u2192 200 km\/hr
\n1 \u2192 50 km\/hr
\nSlower train: 3 \u2192 150 km\/hr
\nHence, The speed of the slower train = 150 km\/hr<\/p>\n

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

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

Relative speed $= 48-30 = 18 km\/hr = 18\\times\\dfrac{5}{18} = 5 m\/sec$
\nFaster train crosses a man in slower train in 22 seconds.
\nLength of the faster train = 5*22 = 110 m<\/p>\n

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

Speed of A, $a =\u00a0 \\dfrac{900}{9} = 100$ km\/hr<\/p>\n

Speed of B, $b = \\dfrac{4}{5} \\times 100 = 80$ km\/hr<\/p>\n

On day 1, distance travelled by A before B starts = $2 \\times 100 = 200$ kms.<\/p>\n

When B starts moving, the relative speed between A and B, $r = 100+80 = 180$ km\/hr<\/p>\n

When B starts moving, the distance between A and B = 900 – 200 = 700 kms.<\/p>\n

Thus, time taken for the 2 trains to meet = $\\dfrac{700}{180} = \\dfrac{35}{9}$ hours.<\/p>\n

Location of point P = $\\dfrac{35}{9} \\times 80$ from Y = $\\dfrac{2800}{9} $ kms from Y<\/p>\n

On day 2, distance travelled by B before A starts = $2 \\times 80 = 160$ kms.<\/p>\n

When B starts moving, the relative speed between A and B, $r = 100+80 = 180$ km\/hr<\/p>\n

When B starts moving, the distance between A and B = 900 – 160 = 740 kms.<\/p>\n

Thus, time taken for the 2 trains to meet = $\\dfrac{740}{180} = \\dfrac{37}{9}$ hours.<\/p>\n

Location of point Q = $\\dfrac{37}{9} \\times 100$ from Y = $\\dfrac{3700}{9} $ kms from Y<\/p>\n

Therefore, distance between P and Q = $\\dfrac{3700}{9} – \\dfrac{2800}{9} = 100$ kms.<\/p>\n\n

DOWNLOAD APP FOR RRB FREE MOCKS<\/a><\/p>\n

We hope this Trains Problems Questions\u00a0 for RRB NTPC Exam will be highly useful for your Preparation.<\/p>\n","protected":false},"excerpt":{"rendered":"

Trains Problems for RRB NTPC PDF Download RRB NTPC Trains Problems Questions and Answers PDF. Top 15 RRB NTPC Trains Problems 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 Papers PDF Question 1:\u00a0A frog jumps […]<\/p>\n","protected":false},"author":41,"featured_media":31786,"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],"tags":[491,1637,2052,1647,1619],"class_list":{"0":"post-31782","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":"tag-rrb","12":"tag-rrb-exam","13":"tag-rrb-maths","14":"tag-rrb-mocks","15":"tag-rrb-ntpc-2019"},"better_featured_image":{"id":31786,"alt_text":"Trains Problems for RRB NTPC PDF","caption":"Trains Problems for RRB NTPC PDF","description":"Trains Problems for RRB NTPC 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