Question
Q uses 76% of his monthly earnings. If his total savings
for 7 months amount to Rs. 42,840, determine his total spending over a period of 9 months.Solution
ATQ,
Let the monthly income of Q be Rs. '100p'. Monthly expenditure = 0.76 × 100p = Rs. '76p' Monthly savings = 100p - 76p = Rs. '24p' ATQ, 24p = (42,840/7) = 6120 Or, 'p' = 255 Therefore, required expenditure = 9 × 76p = 9 × 76 × 255 = Rs. 1,74,420
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