A family in Ranchi budgets ₹9000 a month. It spends 30% of the budget on food, and 20% of that food money goes on milk. What percent of the whole budget is spent on milk?

Question

Accepted Answer

6%. Milk = 20% of 30% = 0.20 × 0.30 = 0.06 = 6% (that is ₹540 out of ₹9000). Trap: percentages on different bases cannot be added or subtracted, so 30 + 20 = 50% and 30 − 20 = 10% are both wrong; 60% comes from misplacing the decimal point in 0.06.

A family in Ranchi budgets ₹9000 a month. It spends 30% of the budget on food, and 20% of that food money goes on milk. What percent of the whole budget is spent on milk?

Step-by-Step Solution

Key idea: Discount

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