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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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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What fraction of a cake remains when 3/8 of the cake has been eaten...?

(A) 2/8
(B) 4/8

(C) 5/8
(D) 6/8

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if 35 labourers dig 805 cubic meter of earth in 5 hrs how much of the earth will 30 labouees dig in 6 hrs...?

(A) 728 m3
(B) 828 m3

(C) 928 m3
(D) None of these

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15 men were hired to plough a piece of land in 10 days. How many more men will be required to do the same job in 3 days?...?

(A) 35
(B) 40

(C) 50
(D) None of these

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(892) squre=...?

(A) 795664
(B) 1784

(C) 796,864
(D) 1942

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The average run of 8 players is 6. The average run increases by 1 when 2 new players are included. What is the average run of new players...?

(A) 10.5
(B) 11.5

(C) 125
(D) 13.5

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If an-2=3n-1 find the value of an:...?

(A) 2n+3
(B) 3n-5

(C) 2n+2
(D) None of these

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Saim can row vartheta*km / h * r in still water. It takes him twice the time up as to row down Find the rate of flow of the stream...?

(A) 16 km/h
(B) 8 km/h

(C) 3 km/h
(D) 9 km/h

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There are 56 boys in a class of 140 students. What percent of the students are boys...?

(A) 30%
(B) 35%

(C) 40%
(D) 55%

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