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The tank full of petrol in Haroon’s motorcycle lasts for 10 days, if he starts using 25% more every day for how many days will the tank full of petrol last?

The tank full of petrol in Haroon’s motorcycle lasts for 10 days, if he starts using 25% more every day for how many days will the tank full of petrol last?

A. 5days
B. 6days
C. 7days
D. 8days
Explanation:
Let us assume that Arun uses X units of petrol everyday.
So the amount of petrol in the tank when it is fuel will be 10X.
If he started using 25% more petrol every day, then the amount of petrol he how uses everyday will be
X (1 +25/100) =1.25x
Therefore, number of days his petrol will how last = Amount of petrol in tank / amount of petrol used everyday = 10x/1.25x = 10/1.25 = 8 Days