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Converting Fractions/Decimals to Percentages

The price of ...

Question

The price of petrol in the year 2019 is ₹50. If it is increased by 60% at 2021, the price of petrol is

A

₹ 70

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B

₹ 80

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C

₹ 90

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Solution

The correct option is B ₹ 80
Price of petrol at the year 2019 is ₹50

It is increased by 60% at 2021.

At 2021, price of petrol = 50 + $\frac{60}{100}$ $\times$ 50

= 50 + 30 = ₹ 80

Hence, the price of petrol at 2021 is ₹80

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