Question

Convert each of the following decimal as percentage : (i) 0.282 (ii) 1.51

6. Express the following as the product of its factors: (i) 24ab

2

c

2 (ii) 36 x

3

y

2z

7. Using the identity (a + b)(a – b) = a

2 – b

2, find the following product.

(1+ 3b) (3b -1)

8. Find the mean of the following data. 5.1, 4.8, 4.3, 4.5, 5.1, 4.7, 4.5, 5.2, 5.4

9. Find the mode of the following data. 2, 4, 5, 2, 6, 7, 2, 7, 5,4, 8, 6, 10, 3, 2, 4​

Answer 1

Answer:

0.282=28.2%

1.51=151%