exam Maths Puzzle Numerical Ability

In his coin collection of dimes and quarters, Quang has 168 coins. If the collection has a value of $30. how many coins are dimes? how many are quarters?

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exam Other Question

If a soccer ball is kicked straight up from the ground with an initial velocity of 32 feet per second, then its height above the earth in feet is given by s(t)= -16t^2 +32 where t The length of a rectangle is 7/8 yd, and its width is 32/49 yd. What is its area in square yards?