exam Maths Puzzle Numerical Ability

Will a clamp 7 inches long go around a radiator gose having a diameter of 2 1/2 inches?

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exam Other Question

A test shows that 10 out of 100 gadgets are defective. In a random sample of two gadgets are chosen, the probability that both are defective is?

a. 1/1000
b. 1/110
c. 1/11
d. 1/10 2+3.3p where p=3 What is the answer?