Wednesday, 1 May 2019

Assistant Director FIA and IB solved past paper page 9

76. What is the average of the numbers: 2, 5, 0, 10, 10, 12, 8 and 9?
(A) 6
(B) 7
(C) 8
(D) 9
77. If 75 percent of a number is y. And, 80 percent of y is 60, then what is the number?
(A) 100
(B) 110
(C) 120
(D) 130
78. The cost of an article is Rs.160. What should be the selling price in rupees to obtain a profit of 15 percent?
(A) 180
(B) 182
(C) 184
(D) 186
79. There are 20 Multiple Choice Questions (MCQs) in an exam with 4 options in every question. A student attempted the exam just on random guessing. How many questions (according to probability) he will attempt correctly?
(A) 4
(B) 5
(C) 6
(D) 7
80. A person preparing for Olympics Games ran 9 km in 1 hour and 20 minutes, and then 12 km in 1 hour and 40 minutes. What is the average speed in km/hr?
(A) 4 km/hr
(B) 5 km/hr
(C) 6 km/hr
(D) 7 km/hr
ANSWERS: MINISTRY OF DEFENCE PAST TEST
76(B) Find solution below..
77(A) 78(C) 79(B) 80(D)
SOLUTIONS: MINISTRY OF DEFENCE PAST TEST
76. (B)
77. (A)
78. (C) As we know that, Cost + Profit = Selling Price. Hence,
79. (B) Out of 4 options only one is correct. So,
80. (D) Total Distance = 9km + 12km = 21 km. And, Total Time = 1 hour 20 + 1 hour 40 = 3 hours. Hence, Average Speed is


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