CAT 1993 — QA Question 39
PercentageEasy
A report consists of 20 sheets each of 55 lines and each such line consist of 65 characters. This report is retyped into sheets each of 65 lines such that each line consists of 70 characters. The percentage reduction in number of sheets is closest to
Answer & solution
Correct answer: 20
20
- B
5
- C
30
- D
35
Solution
The total number of the characters = (20 × 55 × 65).
Let the number of pages in the new format be n.
Thus, the total number of the characters = (65 × 70 × n).
Since the total number of the characters remains same,
⇒ 20 × 55 × 65 = 65 × 70 × n
⇒ n ≈ 16.
Hence, the required percentage 100 = 20%.
Hence, option (a).