## Consider the three circles that touch each other as shown in the figure given below. The radii of al….

Consider the three circles that touch each other as shown in the figure given below. The radii of all three circles are equal, i.e. 1 cm. Find out the area of the shaded region of the figure.

## 1 . 2 . 3 + 2 . 3 . 4 + 3 . 4 . 5 + ………………. + n (n + 1) (n + 2) is the same as ….

1 . 2 . 3 + 2 . 3 . 4 + 3 . 4 . 5 + ………………. + n (n + 1) (n + 2) is the same as

## If m parallel lines in a plane are intersected by a family of n parallel lines, then the total numbe….

If m parallel lines in a plane are intersected by a family of n parallel lines, then the total number of parallelograms so formed is

## In a group of junior basketball players, the average weight of boys is 65.9 kg and the average weigh….

In a group of junior basketball players, the average weight of boys is 65.9 kg and the average weight of girls is 57 kg. When the average weight of both boys and girls is 60.3 kg and the total number of boys in the group is 66, then what...

## There are 100 students in a class, out of which 70 speak in English and 50 speak in Hindi. Find out ….

There are 100 students in a class, out of which 70 speak in English and 50 speak in Hindi. Find out how many students can speak both languages, if all the students speak at least one language.

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## There are 15 male employees and 10 female employees. What will be the probability of selecting 1 fem….

There are 15 male employees and 10 female employees. What will be the probability of selecting 1 female employee and 2 male employees, if three of them are selected randomly?

## In how many manners can the word RABBIT be written?….

In how many manners can the word RABBIT be written?

## A mixture of wheat is sold at Rs. 6 per kg. This mixture contains wheat qualities of prices Rs. 4.5 ….

A mixture of wheat is sold at Rs. 6 per kg. This mixture contains wheat qualities of prices Rs. 4.5 per kg and Rs. 5.3 per kg. For a profit of 20%, what should be the ratio of cheaper quality to costlier quality of wheat?

## The cost price of an article is Rs. 16. The percentage of profit when wrongly calculated on the sell….

The cost price of an article is Rs. 16. The percentage of profit when wrongly calculated on the selling price came out to be numerically equal to the selling price. Then, which of the following denotes the selling price of the article?

## The interest on a certain principal P at 12% SI for 4 years is equal to the amount on a principal Q ….

The interest on a certain principal P at 12% SI for 4 years is equal to the amount on a principal Q at 11% S.I. for 4 years. Then,

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