Direct and Inverse Proportion Word Problems

If 5 workers take 16 days to complete an order, how many days would it take 10 people?

If it takes 3 people, 20 hours to dig a hole, how many hours will it take 5 people?

If 3 people can paint a fence in 6 days, how many days would it take 2 people?

If 8 boxes contain 480 pins, how many pins will there be in 3 boxes?

If 3 minibuses can carry 42 passengers, how many passengers can 2 minibuses can carry?

If 4 cooks can prepare a buffet in 15 minutes, how many minutes would it take 6 cooks?

If 5 calculators cost £65, how much will 3 calculators cost?

If it takes 4 florists 100 minutes to arrange the flowers for a wedding, how many minutes would it take 5 florists?

If 10 bricks weigh 15kg, how many kg will 3 bricks weigh?

If it takes 3 mechanics, 20 hours to build a car, how many hours would it take 4 mechanics?