Aptitude Questions

(1) If 2x-y=4 then 6x-3y=?

(a) 15 (b)12 (c)18 (d)10

Ans.b

(2) If x=y=2z and xyz=256 then what is the value of X?

(a) 12 (b) 8 (c) 16 (d) 6

Ans.b

(3) A goat is tied to one corner of a square plot of side 12m by arope m long. Find the area it
can graze?

(a)38.5sq.m (b) 155 sq.m (c) 144sq.m (4) 19.25sq.m

Ans.a

(4) Find the smallest number in a GP whose sum is 38 and product 1728?

(a) 12 (b) 20 (c) 8 (d) none of these

Ans.c

(5) A boat travels 20kms upstream in 6hrs and 18kms down stream in 4hrs. find the speed of the boat in still water and the speed of the current?

(a) ½ kmph (b) 7/12 kmph (c) 5kmph (d) none these

Ans.b

(6) Thirty men take 20days to complete a job working 9 hours a day. How many hour a day should 40 men work to complete the job.
(a) 8hrs (b) 71/2 hrs (c) 7 hrs (d) 9 hrs
Ans.b
(7) Pipe A can fill in 20 minutes and pipe B in 30mints and pipe C can empty the same 40 mints.It all of then work gother.find the time taken to fill the tank?
(a) 171/7mins (b) 20 mins (c) 8 mins (d) none of these
Ans.a
(8) mr. shan decided to walk down the escalator of a tube station.He found that if he walks down 26 steps.he requires 30 seconds to reach the bottom.however,if he steps down 34 stairs he would only require 18 seconds toget to the bottem.if the time is measured from the moment the top step begins to descend to the time he steps off the last step at the bottom.find out the height of the stair way in steps?
Ans.46steps
(9) The average age of 10 members of a committee is the same as it was 4years age because an old member has been replaced by a young member.find how much younger is the new member?
Ans.40years
(10) ABCE is an isosceles trapezoid and ACDE is a rectangle.AB=10 and ec=20,What is the length of AE?
Ans.AE=10