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If 15 women working at the same rate can produce 25 dolls in an hour, how many dolls would 20 women make in 45 minutes?

1. A 20
2. B 25
3. C 30
4. D 50

If a car can drive 25 km on two litters of octen, how many litters will be needed for a trip of 150 km?

1. A 12
2. B 3
3. C 6
4. D 7

A cake is put in the oven at 7.20 am. If the cake takes three quarters of an hour to bake, at what time should it be taken out of the oven?

1. A 7 : 50 a.m
2. B 8 : 05 a.m
3. C 8 : 10 a.m
4. D 8 : 15 a.m

A, B and C can complete a pice of work in 24, 6 and 12 days respectively. Working together, they will be complete the same work in:

1. A 1/24 days
2. B 24/7 days
3. C 4 days
4. D 7/24 days

An empty pool is being filled with water at a constant rate. It takes 9 hours to fill 3/5 th of the pool. How much more time will it take to compeletely fill the pool?

1. A 10
2. B 15
3. C 9
4. D None of these

One worker can do a job in n hours, while it takes a second worker m hours to do the same job. How long does it take both workers?

1. A (m + n)/mn
2. B 1/m + 1/n
3. C m + n
4. D mn/(m + n)

A man works twice as much as his assistant. The man can finish the job in 12 days. Find the number of days in which the man and his assistant can finish the job if they work together?

1. A 10
2. B 12
3. C 6
4. D 8

If m men can do a job in 10 days, how many days it will take for 10 men to complete the job assuming that they work at the same rate?

1. A 10/m
2. B 100m
3. C 10m
4. D m

If 15 men can reap a field in 35 days, in how many days will 21 men reap the field?

1. A 175/6 days
2. B 25 days
3. C 49 days
4. D 9 days

If a woman is paid Tk.m per hour every hour she works up to 8 hours and is paid double for every hour she workes after 8 hours, how much Tk will she be paid for working 13 hours?

1. A 13m
2. B 18m
3. C 6m
4. D 8m

Faruk can complete a task in 20 days. He gets 2 assistants- each of whome can work as fast as he does. If all of them work together for 5 days, what percentage of the task will be complete?

1. A 40%
2. B 50%
3. C 60%
4. D 66.66%

A and B together can paint a wall in 3 days. A can do it alone in 5 days. How many days would it take B to do this job alone?

1. A 0.5
2. B 5.0
3. C 6.4
4. D 7.5