Direct and Inverse Proportion

If 18 women can reap a field in 7 days, in what time can 6 women reap the same field ?

• 15 days

• 21 days

• 30 days

• 36 days

A machine in a soft drink factory fills 600 bottles in 5 hours. How many bottles will it fill in 2 hours ?

• 120

• 150

• 180

• 240

A laborer is paid Rs 400 for 2 days work. If he works for 5 days, how much will he get ?

• Rs. 1000

• Rs. 800

• Rs. 750

• Rs. 900

If an amount of food last for 40 days for 120 men, how long will it last for 80 men at the same rate ?

• 50 days

• 60 days

• 80 days

• 100 days

If the weight of 12 sheets of thick paper is 40 grams, how many sheets of the same paper would weigh 5/2 kilograms?

• 520

• 500

• 750

• 820

Is the following statement is inverse proportion or direct proportion?

The number of workers on a job and the time to complete the job

• direct

• inverse

• none

• both

Is the following statement is inverse proportion or direct proportion?

The time taken for a fixed journey and the speed of a vehicle

• direct

• inverse

• none

• both

Is the following statement is inverse proportion or direct proportion?

area of the cultivated land and the crop harvested

• direct

• inverse

• none

• both

6 pipes are required to fill a tank in 1 hour. How long will it take if only 5 pipes of the same type are used ?

• 80 minutes

• 90 minutes

• 75 minutes

• 72 minutes

120 copies of a book cost Rs 600. What will 400 copies cost ?

• Rs. 2000

• Rs. 2400

• Rs. 3000

• Rs. 3600