Book Maths Puzzle Logical Reasoning Mathematical Reasoning

Suppose you enter an elevator at a certain floor. Then the elevator
moves up 5 floors, down 3 floors, and up 2 floors. If you are then at
the 8th floor, on what floor did you first enter the elevator?

Read Solution (Total 1)

Ans: 4th floor

Let we enter at floor number x, then x + 5 - 3 + 2 = 8
=> x=4
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Book Other Question

A clock which gains 5 minutes every 12 hour, is set right at 5 a.m.What will be the real time, when the cock shows 5 p.m. on the following 5th day ?

a. 4:55 p.m.
b. 4:05 p.m.
c. 5:05 p.m.
d. 5:55 p.m. a cistern has a leak whick would empty in 8 hours. a tap is turned on, which fill the empty cistern 6 litres a minute. and the cistern is now empetied in 12 hours.the cistern can hold??