A bicycle has two wheels (one large and one small) of 120 cm and 40 cm in diameters. When the large wheel makes 10 revolutions, how many revolutions does the small wheel make in that time?

An ambulance travels 10 miles at a speed of 75 mi,es per hour. How fast must the ambulance travel on the retur...

An amount of money was distributed among some people in such a way that it there had been 4 more people, every...

In a survey, it was found that 65% of the people surveyed watched the news on television, 40% read it on newsp...

In a certain country, a person is born every 7 seconds and a person dies in every 13 seconds. Therefore, the b...

If (a+a+a)=(b+b+b+b)and (a+b)=7, then what is the value of (a2-b2)?

Baki lives 2 miles west of Raju's house. Rafiq lives 3 miles north of Raju's house and 2 miles west Diba's hou...