Direct & Inverse Proportion Mock Tests

If 12 workers can complete a piece of work in 10 days, how many days will 15 workers take to complete the same work, assuming all work at the same rate?

If x and y are in inverse proportion and x = 4 when y = 6, what is y when x = 8?

If 8 workers can complete a piece of work in 12 days, how many days will 6 workers take to complete the same work?

If a car travels 120 km in 2 hours, how far will it travel in 5 hours at the same speed?

If 5 workers can dig a trench in 20 days, how many days will 10 workers take?

If 12 machines can produce 960 items in 1 hour, how many items will 8 machines produce in 1 hour at the same rate?

A car travels 180 km in 3 hours. How long will it take to travel 420 km at the same speed?

A train travels 360 km in 6 hours. Its speed is: