If the incomes of the B in 2012 and 2013 were in the ratio `3:4` Find the ratio of Expenditure of that company in theses 2 years ?

Options

A. `48:35`
B. `42:53`
C. `58:45`
D. `45:58

Answer

D

Explanation

Income `rArr 2012 :2013 =3:4 30:40`
`45=(30-E)xx(100)/(E)`
`(45E)/(100)=30-E`
`(9E)/(20)=30-E`
`9E=600-20E`
`29E=600`
`E=(600)/(29)........1992`
`50=(40-E)xx(100)/(E)`
`(50E)/(100)=40-E`
`E=2(40-E)`
`E=80-2E`
`3E=80`
`E=(80)/(3)`
Ratio `=(600)/(29)=(80)/(3)=(600xx3)/(29xx80)`
`=(1800)/(2320)=(180)/(232)=(45)/(58)`