Basic Numeracy/Quantitative Aptitude

120. Joe worked part time for x hours and earned y dollars. How much does he earn if he works z hours?

	(a) yz/x
	(b) z/(xy)
	(c) xyz
	(d) zx/y

121. In a science test, a class of 30 students had an average of 80. The 20 girls in the class had an average of 85. What is the average of the 10 boys in the class?

	(a) 60
	(b) 70
	(c) 80
	(d) 85

TOTAL

Detailed Solution

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