Ramesh, Sheelu, and Jamaal had 20, 50 and 80 pencils respectively. 4 months later, Ramesh, Sheelu and Jamaal used up 10, 25 and 40 pencils respectively. Which is the correct option for the fraction each use up and whether all fractions equal or not?

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12

12

and

12

; Equal

12

12

and

12

; Unequal

2, 2 and 2; Equal

2, 2 and 2; Unequal

answer is A.

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Detailed Solution

Given that, Ramesh, Sheelu, and Jamaal had 20, 50 and 80 pencils respectively. 4 months later, Ramesh, Sheelu and Jamaal used up 10, 25 and 40 pencils respectively.
Here, the fraction will be represented by the ratio of the number of pencils used to the total number of pencils.
Total number of pencils Ramesh had = 20
Total number of pencils used by Ramesh = 10
Total number of pencils Sheelu had = 50
Total number of pencils used by Sheelu = 25
Total number of pencils Jamaal had = 80
Total number of pencils used by Jamaal = 40
Hence,
Fraction for pencils used by Ramesh