Question

Written examination in which full mark veer 508 10% less than b b 25% more than c and c 20% less than mark was obtained

Answer 1

option(C)

let D's mark be 100....C-->20% less than D=80

B-->25% more than C=100

A-->10% less than B=90

now when A's marks is 90 then D's marks=100

so, when A's mark is 360 then D's marks=100*360/90=400(out of 500)

hence 80%