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26.	Which of the following multipliers will cause a number to be increased by 29.7%?
	A.  1.297
	B.  12.97
	C.  129.7
	D.  1297

Solution

Let the number be 100 and required multiplier be y. Then, 100y = 129.7 y = 129.7 / 100 = 1.297

27.	The ratio 5 : 4 expressed as a percent equals
	A.  12.5%
	B.  40%
	C.  80%
	D.  125%

Solution

5 : 4 = 5/ 4 = (5 / 4 x 100)%. = 125 %.

28.	Shobha's Mathematics Test had 75 problems i.e. 10 arithmetic, 30 algebra and 35 geometry problems. Although she answered 70% of the arithmetic, 40% of the algebra and 60% 0f the geometry problems correctly, she did not pass the test because she got less than 60% of the problems right. How many more questions she would have needed to answer correctly to earn a 60% passing grade?
	A.  5
	B.  10
	C.  15
	D.  20

Solution

Number of questions attempted correctly = (70% of 10 + 40% of 30 + 60% of 35) = (7 + 12 + 21) = 40. Questions to be answered correctly for 60% grade = 60% of 75 = 45. Required no of questions = (45 - 40) = 5.