CAT Exam Numerical Ability Arithmetic

There are 2 water tanks A and B. A is much smaller than B. While water fills at the rate of 1 litre every hour in A, it gets filled up like 10,20,40,80,160... in B. If tank B is 1/32 filled in 21 hours, then what is the total duration of hours required to fill it completely.

(a) 26
(b) 25
(c) 5
(d) 27

Read Solution (Total 2)

1/32 gets filled in 21 hr
1/16 gets filled in 22 hr
1/8 gets filled in 23 hr
1/4 gets filled in 24 hr
1/2 gets filled in 25 hr
1 gets filled in 26 hr

Ans a) 26
6 years agoHelpfull: Yes(1) No(0)

option b)25
7 years agoHelpfull: Yes(0) No(1)

CAT Other Question

Lakshmi and Divya can complete a data entry jobin X days. Lakshmi alone takes 9 days more to finish the work while Divya take 4 days more. Find the value of X.

(a) 5 days
(b) 13 days
(c) 6 days
(d) 9 days Bill Ambani, a very clever businessman, started off a business with very little capital. In the first year, he earned a profit of 50% and donated 50% of the total capital to a charitable organisation. The same course was followed in the 2nd and 3rd years also. If at the end of three years, he is left with Rs. 16875, then find the amount donated by him at the end of the 2nd year.