1. Shashi weaves 25 baskets in 35 days. in how many days will she weave 110 baskets.
2. Two men can do a piece of work in 3 days and 6 days respectively. If they work together, in how many days will they finish the work.
3.One man can do a piece of work in 3 hours; another can do the same piece of work in 2 hours. How many long will they take if they worked together.
4.A and B together can do a piece of work in 10 days but a alone can do it in 15 days. How many days would B alone take to do the same work.
5. Two men can do a piece of work in 6 hours in 4 hours respectively. After the first has worked for two hours he is joined by the other. By when should the work be completed.
6.A, B, and C can cultivate a field in 10,12 and 15 days respectively. If they work together in how many days will they finish the work and what fraction of the work will each of them do.
7. A,B and C can do a piece of work in 10 days. A alone can do it in 40 days and B alone can do it in 30 days.In how many days will C alone do the same work.
8.A and B can do a piece of work in 8 days. B and C can do the same work in 12 days and A, B, C complete it in 6 days. In how many days can A and C finish it
9. A cistern can be filled by one tap in 4 hours and by another in 3 hours. How long will it take to fill if both taps are opened together.
10. A cistern can be filled by a tap in 4 hours and empty by an outlet pipe in 6 hours. How long will it take to fill the cistern if both the pipes are opened together.
11. One tap fills a bath tub in 12 minutes and another tap fills it in 15 minutes. The waste pipe can empty the bath tub in 10 minutes .In what time will the bath tub be filled if both the taps are turned on and if the waste pipe has been left open accidentally.
12. A pipe can fill a cistern in 6 hours. Due to a leak in the bottom it is filled in 7 hours. When the cistern is full in how much time will it be emptied by the leak?
13. A cistern has two inlets A and B which can feel it in 15 hours and 20 hours respectively. An outlet can empty the full cistern in 12 hours . If all the three pipes are opened together in the empty cistern how much time will they take to fill the cistern completely.
This question's are from
"TIME AND WORK"
chapter class 8
composite mathematics book of CBSE course
Answers
Answered by
4
Answer:
1. 154
Step-by-step explanation:
25×4=100=35×4=140then we have 110 then 25÷5=5 then 35÷5=7 then 5×2=10 7×2=14 140++14=154
Answered by
3
Answer:
1.154
Step-by-step explanation:
In 35 days Shashi weaves=25 baskets
In 110 day Shashi weaves=35/25*110
=154 baskets
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