plz anyone send me some q for time and work of class 8 ncert
Answers
Answer:
these are your questions..... check them out.
Step-by-step explanation:
Set 1
Q1.A can do a piece of work in 24 days while B can do it in 30 days. In how many days can they complete it, if they work together?
Q 2. A can do a piece of work in 15 hours while B can do it in 12 hours. How long will both take to do it, working together?
Q 3. A and B, working together can finish a piece of work in 6 days, while A alone can do it in 9 days. How much time will B alone take to finish it?
Q 4.Together,Vikas and Ravi plough a field in 4 days. Ravi
alone takes 6 days to plough the same field. In how many days can Vikas alone plough the field?
Q 5. A and B can do a piece of work in 18 days; B and C in 24 days and A and C in 36 days. In what time can they together do it, all working together?
......
Answer key
Q.1 40/3 days
Q.2 20/3 days
Q.3 18 days
Q.4 12 days
Q.5 16 days
.......
Set 2
1. A pipe can fill the cistern in 7 hours. Due to a leakage in cistern it is filled in 8 hours. After the cistern is full, in how much time will it be emptied due to leakage?
2. A cistern can be filled by a tap in 5 hours and emptied by an outlet pipe in 6 hours. How long will it take to fill the cistern if both the taps and pipe are opened together?
3. A tank can be filled by one tap in 8 hours and by another in 12 hours. How long will it take to fill if both the taps are opened simultaneously?
4. A pipe can fill the tank in 4 hours. Due to leakage at the bottom it is filled in 5 hours. When the tank is full, in how much time will it be emptied by the leak?
5. A water tank can be filled by two taps A and B in 5 hours and 8 hours respectively. The full tank can be emptied by the third tap in 6 hours. If all the taps be opened at the same time, in how much time will the empty tank be filled up completely?
Hope this will help you ... practice them and I am sure if there is your test very soon these questions will help you score good marks.....
Regards
....and all the best for your test ☺️
________________________
From,
The Misterio