If a pipe fills a tank in n hours, then the work done by the inlet in 1 hour is $$\frac{1}{n}$$.
True
False
If 56 men can do some work in 42 days, then 168 men will finish the same work in 12 days.
True
False
The work done by the inlet is always positive whereas the work done by the outlet is always negative.
True
False
Time is not proportional to work.
True
False
Click the correct answer.
If 2 men can do a piece of work in 10 days, how many men are needed to complete the same work in 5 days?
5 men
8 men
4 men
6 men
Aman can finish a work in 18 days. Nisha can do the same work in half the time taken by Aman. Working together, what part of the same work can they finish in a day?
$$\frac{2}{5}$$
$$\frac{1}{9}$$
$$\frac{2}{7}$$
$$\frac{1}{6}$$
Hansa does $$\frac{7}{10}$$ of work in 15 days. With the help of her daughter, she completes the remaining work in the next 4 days. In what time could they complete the work together?
$$12\frac{2}{3}$$ days
$$13\frac{1}{3}$$ days
13 days
12 days
If 10 computer operators can type 120 pages in 2 hours, how many operators should work if the job is to be completed in 30 minutes?
40
45
50
55
Heena can do $$\frac{1}{4}$$ of the work in 10 days, Juhi can do 40% of the work in 15 days and Zuliya can do $$\frac{1}{3}$$ of the work in 13 days. Who will complete the work first?
Heena
Juhi
Zuliya
Both Heena and Juhi
Soni can do a piece of work in 6 days, Mahi can do it in 4 days and Nancy can do it in 12 days. What will be their one day’s work, if they work together?
$$\frac{1}{3}$$
$$\frac{1}{4}$$
$$\frac{1}{2}$$
$$\frac{2}{3}$$
A tap can fill a cistern in 8 hours and another tap can empty the full cistern in 16 hours. What will be the time taken to fill the cistern if both the taps are open simultaneously?
16 hours
12 hours
8 hours
18 hours
Rinku can knit a sweater in 6 hours and Seema can knit the same sweater in 8 hours. How much time would they take working together to knit the sweater?
$$2\frac{3}{7}$$ hours
$$3\frac{5}{7}$$ hours
$$4\frac{3}{7}$$ hours
$$3\frac{3}{7}$$ hours
Mini can do a piece of work in 12 days. Mini and Rinki together can finish the work in 8 days. In how many days can Rinki finish the work alone?
14 days
34 days
26 days
24 days
If 10 workers earn ₹ 32,000 in 4 days, how much will 8 workers earn in 6 days?
₹ 38,400
₹ 38,600
₹ 32,500
₹ 48,400
Click the correct answer.
Time is
proportional to work.
indirectly
sometimes
directly
If an outlet empties a full tank in
hours, then work done by it in 1 hour is $$\frac{-1}{n}$$.
n
2n
-n
If Neha knits 35 scarves in 25 days, she will take
days to knit 105 scarves.
85
75
70
If Murshid can do a piece of work in 20 days, he can do $$\frac{1}{5}$$ of the work in
days.
2
4
6
If a pipe fills a tank in x hours, then the part of the tank filled in 1 hour is
.
