SSC CHSL 11 July 2019 Shift-3

Instructions

For the following questions answer them individually

Question 51

A, B and C, alone can do a piece of work in 9, 12 and 18 days respectively. They all started the work together, but A left after 3 days. In how many days, was the remaining work completed ?

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Question 52

If in  $$  \triangle ABC  $$,D is a point on BC, such that BD : BC = 2 : 5, what is the ratio area$$(\triangle ABC) $$: area$$(\triangle ABD)$$? :

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Question 53

The eight digit number 5x32465y is divisible by 88. What is the value of (2x + 3y) ?

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Question 54

The given Bar Graph presents the percentages of population in the age groups, X(above 50 years), Y(20 to 50 years), Z(below 20 years) in five different villages, A, B, C, D and E with total population of 5000, 6000, 8000, 4500 and 6000 respectively.

What is the ratio of the total number of persons of ages above 50 years in the villages, B and C, taken together to the total number of persons having ages between 20 and 50 years in the said villages ?

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Question 55

 if $$ 2sin^{2}\theta+3sin\theta -2=0  $$ ,   $$  0^\circ<\theta<90^\circ $$ then value of  $$ \theta $$ is

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Question 56

If  $$ a =\sqrt{8}-\sqrt{7} $$ and $$ a=\frac{1}{b} $$ then $$ \frac{a^{2}+b^{2}-3ab}{a^{2}+b^{2}+ab} $$  is equal to

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Question 57

The price of petrol is increased by 24%. A person wants to increase his expenditure by 14% only. By what percentage (correct to one decimal place), should he decrease his consumption in order to maintain the same level of expenditure ?

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Question 58

The difference between compound interest and simple interest on ₹x at 6.5% per annum for 2 years is ₹33.80. What is the value of x?

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Question 59

The simplified value of $$20 -[2.8 \times 5 + 0.7 - 3 \div 0.9 \times 1.53 + 2]$$ is equal to:

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Question 60

A person covers 40% of a distance with a speed of 60 km/h and the remaining with a speed of 40 km/h. What is his average speed for the whole journey in km/h?

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