To fill a tank, 25 buckets of water are required. How many buckets of water will be required to fill the same tank if the capacity of the bucket is reduced to two-fifth of its present capacity?
A 62.5
B 35
C 10
D Cannot be determined
Solution
Correct Answer: Option A
মনেকরি,
1 টি বালতির capacity = x
.:25 '' '' '' = 25x
.:নতুন 1টি বালতির capacity =2x/5
তাহলে,
প্রয়োজনীয় বালতির সংখ্যা
= 25x /(2x/5)
= 25x *(5/2x)
= 62.5