The average weight of 8 persons is increased by 2.5 kg when one of them who weighs 56 kg is replaced by a new man. The weight of the new man is:...? Mcqs

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The average weight of 8 persons is increased by 2.5 kg when one of them who weighs 56 kg is replaced by a new man. The weight of the new man is:...?

(A) 76 kg
(B) 72 kg

(C) 78 kg
(D) None of these

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What is the fractional value of 12.5%...?

(A) 1/4
(B) 2/9

(C) 1/5
(D) 1/8

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A Batsman makes a score of 87 runs in the 17th inning and thus increases his average by 3. Find his average after 17th inning...?

(A) 33
(B) 35

(C) 37
(D) 39

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The angle of depression of a point situated at a distance of 70m from the base of a tower is 600. The height of the tower is:...?

(A) 35sqrt{3} * m
(B) 70sqrt {3} / 3 * m

(C) 70m
(D) 70sqrt{3} * m

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A solution of watar and sugar contains 10% sugar the solutions weight is 8 kg. When 2 kg of water is added to this solution the percentage of sugar becomes...?

(A) 8%
(B) 10%

(C) 12%
(D) 18%

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BY converting 75% into fraction the answer will be...?

(A) 3/4
(B) 2/3

(C) 1/3
(D) 1/4

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There are twice as many boys as there are girls if 30% of the boys and 45% of the girls failed in the exams then. What percentage of the class passed the exams...?

(A) 65%
(B) 40%

(C) 52%
(D) None of these

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If x = 3+2√(2), find the value √(x) – 1√(x)....?

(A) 2
(B) 3

(C) 4
(D) None of these

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ax+2y=5, 3x-6y=20 in the system of equations above, a is a constant. if the system has one solution, which of the following cannot be the value of a...?

(A) -1
(B) 4

(C) 1
(D) -3

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If x % of 60 = 48 then x=...?

(A) 40
(B) 60

(C) 70
(D) 80

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