Book Maths Puzzle Ratio and Proportion

The ratio of jacks to marbles in the bowl was 2 to 5. If the bowl contained 350 jacks and marbles, how many were marbles?

Read Solution (Total 1)

Let J nd M be the no. of jacks nd marbles
J : M = 2x : 5x
2x + 5x = 350
7x = 350
x=50

No. of marbles => 5x => 5*50 = 250
No. of Jacks => 2x => 2*50 = 100

Ans : 250
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Book Other Question

What is the length, in simplified form, of the hypotenuse of a right triangle whose legs are 33 and 44 units long? A rectangle originally was 8 cm by 17 cm. When both dimensions were decreaseed by the same amount the area decreased by 66cm squared. Find the dimension of the new rectangle.