exam Maths Puzzle Numerical Ability

If three coins are tossed. Find the probability that no more than one coin lands heads up. Is it 5/8. 1/4, 3/8, or 1/2

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exam Other Question

a triangle has an area a=1/2bh. if the area o a triangle is 6sq. cm , find the solution set of all possible whole number values for b & h. The numerator of a fraction is 1 less than the denominator. If the numerator and the denominator are both increased by 4, the new fraction will be 1/8 more than the original fract