TET-Ctet-math-set-11

Mathematics Time and work MCQs for Competitive Exams SET-1
Mathematics multiple choice questions (MCQs) For all competitive exams

Mathematics MCQs for Competitive Exams
गणित बहुविकल्पीय प्रश्न

Welcome to our exclusive collections of Mathematics multiple choice questions with answers. Mathematics is the Science of space, numbers magnitude, and measurement. Mathematics involves the conversion of abstract concepts into concrete form. Mathematics helps to develop the habit of self-confidence and self-reliance in children. It gives accurate and reliable knowledge. Thus, on the basis of above points, we can understand the nature of mathematics and draw the conclusion that the structure of mathematics is indeed the basis of its nature and is more strong as compared to the other school subjects. That is why its study is essential in school education.

Mathematics Time and work MCQs for Competitive Exams SET-1
गणित बहुविकल्पीय प्रश्न


Question : 1-10

Question : 1

X can do a piece of work in 40 days. He works at it for 8 days and then Y finished it in 16 days. How long will they together take to complete the work?

[A].   40/3 days
[B].   27 days
[C].   33 days
[D].   15 days


Question : 2

A and B complete a work in 6 days. A alone can do it in 10 days. If both together can do the work in how many days?

[A].   3.75 days
[B].   4 days
[C].   5 days
[D].   6 days


Question : 3

A is 30% more efficient than B. How much time will they, working together, take to complete a job which A alone could have done in 23 days?

[A].   9 days
[B].   11 days
[C].   13 days
[D].   15 days


Question : 4

A takes twice as much time as B or thrice as much time as C to finish a piece of work. Working together, they can finish the work in 2 days. B can do the work alone in

[A].   4 days
[B].   8 days
[C].   6 days
[D].   12 days


Question : 5

X and Y can do a piece of work in 20 days and 12 days respectively. X started the work alone and then after 4 days Y joined him till the completion of the work. How long did the work last?

[A].   20 days
[B].   14 days
[C].   10 days
[D].   6 days


Question : 6

A and B can do a job together in 7 days. A is 13/4 times as efficient as B. The same job can be done by A alone in

[A].   (A's 1 day's work) : (B's 1 day's work) = 7/4 :1 = 7 : 4.
[B].   Let A's and B's 1 day's work be 7x and 4x respectively.
[C].   Then, 7x + 4x = 1/7 => 11x = 1/7 => x = 1/77 .
[D].   Therefore A's 1 day's work = ( 1/77 x 7 ) = 1/11 = 11 days


Question : 7

A and B together can do a piece of work in 8 days. If A alone can do the same work in 12 days, then B alone can do the same work in?

[A].   20 days
[B].   16 days
[C].   24 days
[D].   28 days


Question : 8

A can do a piece of work in 4 days. B can do it in 5 days. With the assistance of C they completed the work in 2 days. Find in how many days can C alone do it?

[A].   10 days
[B].   20 days
[C].   5 days
[D].   4 days


Question : 9

A and B can do a work in 8 days, B and C can do the same work in 12 days. A, B and C together can finish it in 6 days. A and C together will do it in

[A].   8 days
[B].   13 days
[C].   9 days
[D].   12 days


Question : 10

Ravi and Kumar are working on an assignment. Ravi takes 6 hours to type 32 pages on a computer, while Kumar takes 5 hours to type 40 pages. How much time will they take, working together on two differ

[A].   7 hours 15 minutes
[B].   8 hours 15 minutes
[C].   7 hours 30 minutes
[D].   8 hours 30 minutes





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1 comment:

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