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Question 17 : 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 [TITA]

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From the data,

A scored 72

A's score was 10% less than B

So, Score of B = 80

We know that B was 25% more than C

So, C x = 80

C = 64

Now, we know that D scored 20% less than D

So, C = x D

64 = x D

D = 80 marks

The question is **"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 [TITA]" **

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