A shop's electricity bill for May was 30% more than its bill for April. Its June bill was 5% more than the May bill and came to ₹2,730. What was the April bill?

₹1,774.50Correct answerYour answer₹2,000Correct answerYour answer₹2,022.22Correct answerYour answer₹2,100Correct answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer B

Correct answer: B

May bill = $\frac{2730}{1.05} = ₹2{,}600$ .
April bill = $\frac{2600}{1.3} = ₹2{,}000$ .

Worth noting

Undo each change by dividing, in reverse order. Subtracting 35% from ₹2,730 gives ₹1,774.50; dividing by 1.35 gives about ₹2,022.22 — both wrong because successive rises multiply.

Concept: Reversing successive percentage increases
Typical timeTypical: 75 s
Your timeYours: —

The rule this testsSuccessive percentage change

Practise this chapter →

Ten questions from Percentages, at your own pace.

A shop's electricity bill for May was 30% more than its bill for April. Its June bill was 5% more than the May bill and came to ₹2,730. What was the April bill?

Explanation