Time and work
Authored by Akash Dam
Mathematics
Professional Development
CCSS covered
Used 83+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A Can do a piece of work in 15 days. A and B together can complete the work in 12 days. B alone can do it in-
50 days
60 days
45 days
40 days
Tags
CCSS.HSA.CED.A.1
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
6 men or 8 boys can do a work in 12 days. Then 6 men and 4 boys together can do the work in how many days?
9 days
8 days
15 days
6 days
Tags
CCSS.8.EE.C.7B
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A can complete a work in 15 days and B can do the same work in 20 days. After doing 3 days, A leaves the work. Find in how many days we will do the remaining work?
10 days
12 days
15 days
16 days
Tags
CCSS.HSA.CED.A.1
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A certain number of men can do a work in 30 days. If there were 10 men more it would be finished in 10 days less .how many men are there originally?
25 men
20 men
15 men
30 men
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A is 4 times as fast as B and is therefore able to finish a work in 30 days less than B. Find the time in which they can do it working together.
12 days
16 days
8 days
20 days
Tags
CCSS.HSA.CED.A.1
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A, B and C can do a piece of work in 12, 15 and 20 days respectively. They all together will complete the work in__
4 days
7 days
5 days
8 days
Tags
CCSS.8.EE.C.7B
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
120 men can do a piece of work in 50 days. They started the work but after 20 days, another 30 men are employed. In how many days the remaining work be completed?
25 days
20 days
24 days
21 days
Tags
CCSS.HSA.CED.A.1
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