exam Maths Puzzle Numerical Ability

The probability of being choosen for a dance committee is 3/40. There are 360 students in your class. How many people will be on the dance committee?

A. 9
B. 27
C. 40
D. 120

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exam Other Question

pipe a takes 8 hours to empty out a pool. when added with pipe b it takes only 3 hourse. how long would pipe b take to empty out the pool? A)Ifinvestment of $19,000 grows to $20,200 in 13 years, what is the interest rate assuming quartely compunding.

B) WHat is the interest rate if we use simple interst?