Two groups of tourist each have 60 people. If three-fourth (i. e. 75%) of the first group & two-third of the 2nd group baord buses to travel to a museum, how many more people of the first group board buses compared to the second group?

A triangle has a perimeter of 36 centimeters. If the length of each side is increased by 50, the new perimeter...

Mr. Hashem owns a mango garden withs 220 mango trees in it. Each mango tree of that garden produces from 20 to...

If a : b = 3 : 5 and a : c = 5 : 7, what is the value of b : c?

If 3 is added to both the numerator & the denominator of a fraction, it becomes 5/7. If 9 is subtracted from b...

If 25% of 220 equals 5.5% of w, then what is w?

In a certain village, m liters of water are required per household per month. At this rate if there are n hous...