A can do a piece of work in 6 days and b can do the same work in 12 days. How will it take if both A and B do the work together...? Mcqs

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A can do a piece of work in 6 days and b can do the same work in 12 days. How will it take if both A and B do the work together...?

(A) 4
(B) 6

(C) 8
(D) 10

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A train covers 32 kilometers in 14. If it continues to travel at the same rate, which of the following is closest to the distance it will travel in 2 hours...?

(A) 54 kilometers
(B) 265 kilometers

(C) 364 kilometers
(D) 928 kilometers

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If x= 3 + √8 Find the value of x² + 1/x²...?

(A) 32
(B) 34

(C) 36
(D) None of these

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If a / 3 = b / 2 then 2a + 3b / 3 * a - 2b is:...?

(A) 12/5
(B) 5/12

(C) 1
(D) 12/7

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In Roman C stands for...?

(A) 50
(B) 500

(C) 100
(D) ان میں سے کوئی نہیں

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Minutes buy an old scooters for rs 4700 and spend rs 500 on its repairs. if he sells the scooters for rs 5800 his gain percentage is...?

(A) 4.5%
(B) 5.45%

(C) 10%
(D) 12%

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A doll is sold for Rs 220. What was the cost of doll if rate of profit was 10% of the cost...?

(A) Rs 198
(B) Rs 200

(C) Rs 210
(D) Rs 240

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What percentage is equivalent to 5 1/4...?

(A) 525%
(B) 425%

(C) 625%
(D) None of these

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Amy buys d dollars worth of groceries each week and spends one fourth of those dollars on fruit. In terms of d, how many weeks will it take Amy to spend a total of 1005 just on fruit...?

(A) 400/d
(B) d/100

(C) 25/d
(D) d/25

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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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