a vinash spends 30 of his income on scooter petrol 1 4..., Percentage, General Mathematics

Question:A vinash spends `30%` of his income on scooter petrol,`1/4` of the remaining on house rent and the balance on food. If he spends Rs.` 300` on petrol, then what is the expenditure on house rent ?

A `Rs. 525` 
B `Rs. 1000` 
C `Rs. 675` 
D `Rs. 175`

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+ AnswerD

+ ExplanationSpent on scooter petrol 

`= 30/(100) x`

`= (3x)/10`

Remaining

`= (x - 3x/10)`

`= (7x)/10`

House Rent 

`= 1/4 xx (7x)/10`

`= (7x)/40`

Now, `(3x)/10 = 300 ⇒ x`

`= (300 xx 10)/3`

`= 1000`

House Rent

`= (7 xx 1000)/40`

`= 175.`

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