exam Maths Puzzle Numerical Ability

The cylinder diameter is 19 depth 1.6 at the rate of 14m3 per hr.
How many hrs. will it take to empty the pool? Thanks

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exam Other Question

A lawn mover repair shop borrowed $1,500 for 90 days. If the proceeds of the loan were $1,470, find the discount rate.


a. 3.75%
b. 8 1/3%
c. 4%
d. 8
Perform the indicated operation. Write the result in standard decimal notation.
(9.8 x 10^-4)(2.1 x 10^2)(3.1 x 10^-1)