Question

In an examination A got 25% marks more than B B got 10%less than c and c got 25% more than D if d got 320 marks out of 500 the marks obtained by A were

Answer 1

as d got 320n marks out of 500 .
320/500 mulitply with 100
d got 64%.
c got 64%+25%=89%
b got 89%-10%=79%
a got 79% +25%=104%