Question

EXERCISE 3A
v. 125
1. Write all the factors of the following numbers.
i IS
ii. 40
iii. 56
iv. 75
vi. 108
vii. 288
viii. 729
2. Write first six multiples of each of the following numbers.
i. 7
ii. 18
iii. 35
iv. 80
3. The product of two numbers is 24. Their sum is 14. Find the numbers.
4. Find two numbers whose difference is I and the product is 72.
5. Without actual division, show that each of the following numbers is divisible by 7.
i. 7777
ii. 77077
iii, 770077
iv. 7700077
FACTORS AND MULTIPLES​

Answer 1

Step-by-step explanation:

3. 2*12=24

12+2=14

therefore the numbers are 2 and 12

4. 9-8=1

9*8=72

therefore the number are 8,9

1. a. 4,10,2,5,1,40

b. 8,7,4,2,56,1

c. 15,5,3,75,1

d,. 12,9,6,3,2,108,1

e. 1,2,3,4,6,8,9,12,16,18,24,32,36,48,72,96,144,288

f. 1,3,9,27,81,243,729

2. 7,14,21,28,35,42,49,56

18=18,36,54,72,90,108,126,

35=35,70,105,140,175,210,245,280

80=80,160,240,320,400,480,560