SOLUTION: From his salary,john spends 15%on rents,20%on transport and 50% on groceries. If he saves Rs1245 every month, what is his monthly salary?

Question 992143: From his salary,john spends 15%on rents,20%on transport and 50% on groceries. If he saves Rs1245 every month, what is his monthly salary?
Answer by ikleyn(52775)   (Show Source): You can put this solution on YOUR website!
.
John spends   0.15x + 0.2x + 0.5x.

John saves   x - (0.15x + 0.2x + 0.5x).

The equation is

x - (0.15x + 0.2x + 0.5x) = 1245.

Simplify and solve it:

x - 0.85x = 1245,

0.15x = 1245,

x = = 8300.

Answer. John's salary is Rs8300.

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