Secondary School (English Medium) (5 to 8) Class 8 - CBSE Question Bank Solutions

Draw a histogram to represent the frequency distribution in question 91.

Prepare a histogram from the frequency distribution table obtained in question 93.

Draw a histogram for the following data.

The below histogram shows the number of literate females in the age group of 10 to 40 years in a town.

1. Write the classes assuming all the classes are of equal width.
2. What is the classes width?
3. In which age group are literate females the least?
4. In which age group is the number of literate females the highest?

The following histogram shows the frequency distribution of teaching experiences of 30 teachers in various schools:

1. What is the class width?
2. How many teachers are having the maximum teaching experience and how many have the least teaching experience?
3. How many teachers have teaching experience of 10 to 20 years?

The square of 5.5 is ______.

(1.2)³ = ______.

The square of 2.8 is 78.4.

The square root of 0.9 is 0.3.

A decimal number is multiplied by itself. If the product is 51.84, find the number.

Find the decimal fraction which when multiplied by itself gives 84.64.

If 8x – 3 = 25 + 17x, then x is ______.

On subtracting 8 from x, the result is 2. The value of x is ______.

9 is subtracted from the product of p and 4, the result is 11. The value of p is ______.

If `2/5 x - 2 = 5 - 3/5 x`, then x = ______.

In the equation 3x – 3 = 9, transposing –3 to RHS, we get 3x = 9.

If `15/8 - 7x = 9`, then `-7x = 9 + 15/8`

If `x/3 + 1 = 7/15`, then `x/3 = 6/15`

If 6x = 18, then 18x = 54

Two numbers differ by 40, when each number is increased by 8, the bigger becomes thrice the lesser number. If one number is x, then the other number is (40 – x).