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Railway Express Quiz-21

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Question 1

If then the value of is

Question 2

A can do a piece of work in 6 hours. B and C can do the same piece of work together in 3 hours, while A and C together can do it in 4 hours. How long will B alone take to do it?

Question 3

In the given figure, PQR is an equilateral triangle and PS is the angle bisector of P. What is the value of RT:RQ?

Question 4

With an average speed of 40 km/hr, a train reaches its destination in time. If it goes with an average speed of 35 km/hr, it is late by 15 minutes. The total journey is

Question 5

If and then the value of is

Question 6

The average of a,b,c is 20 and that of b,c,d is 25; if d=30, then the value of a is

Question 7

John invested a sum of money at an annual simple interest rate of 10%. At the end of four years, the amount invested plus interest earned was Rs 770. The amount invested was how much?

Question 8

If the curved surface area of a right circular cone is 10010 sq cm and its slant height is 91 cm, find its total surface area.

Question 9

What is the average of the first six (positive) odd numbers each of which is divisible by 7?

Question 10

If x=5-24, then the value of
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Sep 5SSC & Railway