Time, Work, Speed

Q.

Excluding stoppages, the speed of a bus is $54$ kmph and including stoppages, it is $45$ kmph. For how many minutes does the bus stop per hour?

1. $9$

2. $10$

3. $12$

4. $20$

Q.

8 women or 6 men can finish a piece of construction work in 12 days. 4 women and 9 men will finish the same work in ___days.

Q.

A contractor estimates that $3$ persons could rewire Jasminders house in $4$ days. If he uses $4$ persons instead of three, how long should they take to complete the job?

Q.

12 men can dig a pond in 8 days. How many men can dig it in 6 days ?

Q. 5 workers can complete a work in 20 days. In how many days can 10 workers complete the same work ?

1. 10 days
2. 18 days
3. 15 days
4. 5 days

Q. 10 men can complete a piece of work in 10 days. In how many days will 5 men complete the same work.

1. 20 days
2. 10 days
3. 5 days
4. 15 days

Q.

A's work efficiency is three times than B's and so A is able to finish a job in 60 days less than B. If they work together, they can do this job in ___ days.

[Enter your answer in decimals]

Q.

Mark can make $9$ pancakes in $15$ minutes, and Charlotte can make $42$ pancakes in $45$ minutes. Working together, how many minutes would it take to make $138$ pancakes?​

Q. Three people A, B and C can do a job alone in 2 days, 3 days and 6 days respectively. In how many days they can finish the job working together?

1. 1 day
2. 3 days
3. 2 days
4. 6 days

Q. A train 120 m long passes a man, standing at the station, in 6 seconds. How long would the train have taken to cross past the man if the length of the train was 140 m?

1. 7 seconds
2. 4 seconds
3. 5 seconds
4. 6 seconds

Q.

$25people$have enough food for $15days$ How long would the food last if $5people$leave the house?

Q. A makes 60 chocolate cakes in 20 days and B makes 45 chocolate cakes in 15 days. In how many days will A and B together prepare 24 chocolate cakes?

1. 15
2. 4
3. 6
4. 24

Q. A can finish a work in 10 days, then A can finish twice work in __________.

Q.

A can do $\frac{1}{2}$ of a work in 5 days. B can do $\frac{3}{5}$ of the same work in 9 days and C can do $\frac{2}{3}$ of that work in 8 days. In ___ days three of them together can finish the work.

Q. A can finish a work in 10 days, then A can finish twice work in __________.

Q.

A and B undertake a piece of work for ₹ 200. A alone can do it in 6 days and B in 8 days. With the help of C they can finish it in 3 days. The amount paid to C is _____.

1. ₹ 25

2. ₹ 26

3. ₹ 27

4. ₹ 28

Q.

A can do a work in 15 days and B in 20 days. If they work on it together for 4 days then the fraction of the work that is left is:

1. $\frac{8}{15}$

2. $\frac{7}{15}$

3. $\frac{1}{4}$

4. $\frac{1}{10}$

Q. A can do half of a work in 5 days. B can do three-fifth of the same work in 9 days and C can do two-third of that work in 8 days. In how many days can three of them together complete the work?

1. 5 days
2. $4\frac{1}{2}$ days
3. 3 days
4. 4 days

Q. A car can cover a distance of 100 km in 2 hours. How much distance will be covered by the car in 4 hours?

1. 60 km/h
2. 36 km/h
3. 48 km/h
4. 72 km/h

Q. It takes 6 men 5 hours to build a car. How long does it take for 3 men?

1. 1 Hour
2. 4 Hours
3. 20 Hours
4. 5 Hours

Q. 10 men can finish a job in 10 days. In how many days 20 men can finish the same job?

1. 7
2. 8
3. 9
4. 12

Q.

4 oxen or 12 cows can graze a field in 32 days. How long would 7 oxen and 3 cows take to graze the same field?

1. 17 days

2. 12 days

3. 32 days

4. 16 days

Q. A and B working together can do a piece of work in 10 days $B$ alone can do the same work in 15 days. How long will A alone take to do the same work?

Q. Rate of work and time taken are __________ proportional to each other.

1. Directly
2. Inversely
3. Not sure
4. Depends on situation

Q. 25 men can complete a task in 4 days. How many days does it take for 50 men to complete the same task?

1. 4
2. 6
3. 5
4. 3