exam Maths Puzzle Numerical Ability

Hi

I have a ratio problem I could use some help with.

If the ratio of boys to girls was 9 to 3 and there are 108 students total, how many boys are there?

Thank you,
Dawn

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exam Other Question

Solve for x:
(x - 5)/3 - 3/2 = (4x + 7)/6 Construct a probability distribution for the following:
(a) Construct a probability distribution for drawing a card from a deck of 40 cards consisting of 10 cards numbered 1, 10 c