Think of a number and then double the number, Add 6 and then multiply the number by 10. Now divide the number by 20, then subtract the number you first thought of, What is the result?

An engine pulls four identical carriages. The engine is 2/3 the length of a carriage and the total length of t...

How many multiples of 7 are there between 100 and 150?

The average runs of a cricket player of 10 innings was 32. How many runs must he make in his next innings to i...

The difference between a number and its square is 72. What is the number?

In what ratio, water must be mixed with fruit juice costing Tk. 24 per liter. So that the juice would be worth...

Six years ago Anita was P times as old as Ben was. If Anita is now 17 years old, how old is Ben now in terms o...