Question 29.
In an examination, the score of A was 10% less than that of B, the score of B was 25% more than that of C, and the score of C was 20% less than that of D. If A scored 72, then the score of D was
A
B
C
D
Question Explanation
Text ExplanationVideo Explanation
Let the score of D = 100d
The score of C = 20% less than that of D = 80d
The score of B = 25% more than C = 100d
The score of A = 10% less than B =90d
90d=72
100d= 72*100/90
= 80
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