Four men working together can dig a ditch in 42 days. They begin, but one man works only half-days. How long will it take to complete the job:...? Mcqs

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Four men working together can dig a ditch in 42 days. They begin, but one man works only half-days. How long will it take to complete the job:...?

(A) 46 days
(B) 48 days

(C) 50 days
(D) 52 days

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When 73 is added to 89 and amount is doubled, it gives the same result as the square of 18, what is the answer...?

(A) 164
(B) 162

(C) 324
(D) 163

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During a race, a race car burns fuel at a constant rate. After 4th lap 4 the car has 22 gallons left in its tank. After 7th lap, the car has 18 gallons left in its tank. Assuming the racecar does not refuel then how many laps are made at the end...?

(A) 10
(B) 12

(C) 14
(D) 16

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If one angle of a parallelogram is 24° less than twice the smallest angle, then the largest angle of the parallelogram is...?

(A) 68°
(B) 102°

(C) 112°
(D) 136°

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For what value of x+1/4√x +a² will be perfect square:...?

(A) ±1/18
(B) ±1/8

(C) 1/5
(D) 1/4

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P is 6 times greater than Q then by what per cent is Q smaller than P...?

(A) 84%
(B) 85.5%

(C) 83.33%
(D) 80%

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Omar Khayyam was a Persian:...?

(A) Mathematician
(B) Physician

(C) Chemist
(D) None of these

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What is the value of x in 3x - 15 - 6 = 0...?

(A) 6
(B) 7

(C) 9
(D) -9

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A 5 m long ladder is placed against a wall with its foot 2 m from the wall the ladder reaches...?

(A) sqrt[13] * m
(B) sqrt[17] * m

(C) sqrt[19] * m
(D) sqrt[21] * m

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complete the series: 3, 5, 10, 12, 24, 26,.....?

(A) 52
(B) 66

(C) 65
(D) 56

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