Question

If the price of petrol increases by 45% and Singam intends to spend only an additional 20% on petrol,
then by what percentage must he reduce the quantity of petrol purchased?​

Answer 1

Answer:

18% is your answer

Step-by-step explanation:

Mark it has brainlist

Answer 2

Explanation :-

initial price of petrol is 100 %

which is increased by 45 %

So, the final price of petrol becomes 145% of what it was before.

Now, Singam wants to spend only an additional 20% on the petrol so he pays 120 % of the initial price of petrol.

Suppose the final price is Rs 145 per litre. therefore singam paid 120 rs

Solution :-

now just divide 120 by 145 and then multiply by 100

= 120 ÷ 145 x 100

= 0.827586207 x 100

= 82.756 %

So he will get 82.756 % of 1 litre

the percentage of petrol reduced:-

= 100 - 82.756

= 17.244 %

Hope it helps and you understand the way I have explained :)