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Learn AIR FORCE MCQs with answers [Page 16 of Department 75]
152) Pointing to a lady, a man said, "The son of her only brother is the brother of my wife." How is the lady related to the man ?
(A) Mother's sister
(B) Grandmother
(C) Mother-in-law
(D) Sister of father-in-law
Correct Answer - Option
(D)
Explanation :
Brother of my wife — My brother.in-law; Son of lady's brother is the brother-in-law of the man.
So lady's brother is man's father-in-law
i.e., the lady is the sister of man's father-in-law.
154) The average weight of a class of 24 students is 35 kg. If the weight of the teacher be included, the average rises by 400 g. The weight of the teacher is
(A) 45 kg
(B) 46 kg
(C) 47 kg
(D) 48 kg
Correct Answer - Option
(A)
Explanation :
Weight of the teacher = (35.4 x 25 - 35 x 24) kg = 45 kg
155) 56% of 225 + 20% of 150 = ? - 109
Find the value of '?' in the above equation
(A) 264
(B) 220
(C) 241
(D) None
Correct Answer - Option
(A)
Explanation :
Given 56% of 225 + 20% of 150 = ? - 109
we know that a% of b = b% of a
Now,
225% of 56 + 20% of 150 = ? - 109
200% of 56 + 25% of 56 + 20% of 150 = ? - 109
112 + 14 + 30 = ? - 109
? = 112 + 14 + 30 + 109
? = 264
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