CDS Model Paper 5 Mathematics

Let Ram's monthly income be Rs. 100
Household expenditure =100×

20

100

=20
Rest income =100−20=80.
Books expenditure =80×

15

100

=12
Rest income =80−12=68.
Clothes expenditure =68×

30

100

=20.4
Rest saved income =68−20.4=47.6
But finally saved income =9520
∴

47.6

100

×x=9520⇒x=20,000
Hence, Ram's monthly income =20,000.