A garrison of 500 men had provision for 24days. However a reinforcement of 300men arrived. Now for how many days the food will last?
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let the provision last for x days
no.of men. no. of days food will last
500. 24
500+300=800. x
clearly more of men less no.of days food will long
so it is the case of inverse variation.
therefore ratio of no. of men.=inverse ratio of no. of days
500:800 =x:24
500×24=800×x
500×24÷800=x
x=15
15 days food will last
no.of men. no. of days food will last
500. 24
500+300=800. x
clearly more of men less no.of days food will long
so it is the case of inverse variation.
therefore ratio of no. of men.=inverse ratio of no. of days
500:800 =x:24
500×24=800×x
500×24÷800=x
x=15
15 days food will last
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