Out of 143 girls of school, the ratio of the number of girls who can sing and those who cnan dance is `9 : 2`. If 3 more girls were found to Sing, then let's find the new ratio of girls who can sing and those who can dance.

Out of 143 girls of a school, the ratio of the numbers of girls who can only sing and those who can dance is 9 : 2 . If 3 more girls were found to sing, then find the new ratio of the girls who can sing and those who can dance.

The ratio of boys and girls in Suchitra's class is 4 : 3 . If the total number of students in class is 63, find the number of boys and girls in the class. After a few days 3 more girls joined the class. Calculate the present ratio of boys and girls in Suchitra's class.

There are 2n guests at a dinner party. Supposing that the master and mistress of the house have fixed seats opposite one another , and that there are two specified guests who must not be placed next to one another. find the number of ways in which the company can be placed.

Consider a class of 5 girls and 7 boys. The number of different teams consisting of 2 girls and 3 boys that can be formed from this class, if there are two specific boys A and B, who refuse to be the members of the same team, is

Mohit bought 6 bananas for ₨. 18 from a vendor and Raju bought 2 dozen of bananas for ₨. 72 from another vendor. Let's express in ratio to find who paid more for bananas.

There is a group of 265 persons who like either singing or dancing or painting. In this group 200 like singing, 110 like dancing and 55 painting. If 60 persons like both singing and dancing, 30 like both singing and painting and 10 like all these activities, then the number of persons who like only dancing and painting is___

There is a group of 265 persons who like either singing or dancing or painting .In this group 200 like singing ,10 like dancing and 55 like painting. If 60 persons like both singing and dancing,30 like both singing and painting and 10 like all three activities then the number of persons who like only dancing and painting is