Question

The prices of pulses increased by 30 %. By how much percent should Surbhi reduce her consumption of pulses so that her expenditure on pulses does not increase?
$step \: by \: step \: solution \: plzz$
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Answer 1

Step-by-step explanation:

Shot method

Formula

$\frac{r}{100 + r} \times 100$

$\frac{30}{100 + 30} \times 100$

$\frac{30}{130} \times 100$

$\frac{300}{13}$

23.07%

Answer 2

Step-by-step explanation:

Imagine cost as ₹100 of 10 kg of pulse

30% increase = ₹130

Then cost of 1 kg of pulse = ₹13

How-to balance make it as 100/13= 7.7

Approximately 8kg she can buy