Question

Rani cate 2
2 part of
a cake while her brother 4/5 of
remaining. Left part of cake is :-​

Answer 1

Let the whole cake be x

rani ate = 2x/7

remaining part = x-2x/7 = 5x/7

brother ate = 4x/7

total eaten part = 2x/7+4x/7 =6x/7

remaining part = x-6x/7

=x/7

i.e 1/7 part is left.