How many minutes will it take police car to travel a distance of d miles if it travels at m mile per hour?

If m men can do a job in 10 days, how many days will it take for 10 men to complete the job assuming that they...

In a class of 80 students, 25% are girls, If 10% of the boys and 20% of the girls attended a picnic, what perc...

If x=12, which one has the least value ---

Arif spends 1/10 of his salary for clothing, 1/3 for food, and 1/5 for other expenses. What percentage of his...

The selling price of 4 pencils is equal to the purchase price of 5 pencils. What is the profit margin?

The result of subtraction of two numbers is equal to 3/7 of their sum. If the smaller number is 6, what is the...