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Question

In an examination, A got 10% marks less than B, B got 25% marks more than C, C got 20% marks less than D. If A got 360 marks out of 500, the percentage of marks obtained by D was
  1. 70
  2. 75
  3. 80
  4. 85

A
85
B
70
C
75
D
80
Solution
Verified by Toppr

Let D's mark be x.
So, C = 0.8x, B = 1.25×(0.8x)=x, A=0.9x
A has got 360500.
So, 0.9x=360×100500 or x=80.
D has obtained 80 marks.

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