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Earn 100

The total number of pupils in three classes of a school is . The number of pupils in classes I and II are in the ratio and those in classes II and III are in the ratio . Find the number of pupils in the class, having the highest number of pupils.
(a)
(b)
(c)
(d)

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Important Questions on Ratio, Proportion and Variation
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Sahil can row a certain course up the stream in minutes, and can row the same course down stream in minutes less than that he can row it in still water. How long would he take to row down with the stream?

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If and , then what is the value of ?

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varies directly as . At and , the value of is . Find the value of , when and .

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The wages of labourers in a factory has increased in the ratio and their number is decreased in the ratio . What was the original wage bill of the factory, if the present bill is ?

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The monthly salaries of two persons are in the ratio of . If each receives an increase of in the salary, the ratio is altered to . Find their respective salaries.

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The ratio of boys to girls in a class is . The class has more boys than girls. How many girls are there in the class?

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X, Y and Z play cricket. X's runs are to Y's runs and Y's runs are to Z's runs as . They score a total of runs. How many runs did Z make?

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In a school, of the number of girls is equal to of the number of boys. Find the ratio between the number of boys to the number of girls.
