Question

1. Test the divisibility of the following numbers by 2:
(i) 2650
(ii) 69435
(iv) 789403
(v) 357986
2. Test the divisibility of the following numbers by 3:
(i) 733
(ii) 10038
(iv) 524781
(v) 79124
3. Test the divisibility of the following numbers by 4:
(i) 618
(ii) 2314
(iv) 35056
(v) 946126
4. Test the divisibility of the following numbers by 5:
(i) 4965
(ii) 23590
(iv) 723405
(v) 124684
(iii) 20701
(vi) 872645
(iii) 63712
(vi) 810524
(iii) 35208
(vi) 438750​

Answer 1

Answer:

1. 2650,357986 are divisible

2.10038,524781

3.35056,2314

4.4965,23590,723405,872645,438750

Answer 2

Given= 1. Test the divisibility of the following numbers by 2:

(i) 2650

(ii) 69435

(iv) 789403

(v) 357986

Solution=⬇️

2650⬇️

Ones digit is 0

• 2650 is divisible by 2

69435⬇️

Ones digit is 5

• 69435 is not divisible by 5

357986⬇️

Ones digit is 6

• 357986 us divisible by 6

Given= 2. Test the divisibility of the following numbers by 3:

(i) 733

(ii) 10038

(iv) 524781

(v) 79124

Solution ⬇️

733⬇️

Sum of digits = 7+ 3+ 3= 13

13 is not divisible by 3

• 733 is not divisible by 3.

10038⬇️

Sum of digits = 1+0+0+3+8=12

12 is divisible by 3

• 10038 is divisible by 3

524781⬇️

Sum of digits= 5+2+4+7+8+1= 27

27 is divisible by 3

• 524781 is divisible by 3

Given= 3. Test the divisibility of the following numbers by 4:

(i) 618

(ii) 2314

(iv) 35056

(v) 946126

Solution⬇️

618⬇️

Number formed by tens and ones digit is 18, which is not divisible by 4.

• 618 is not divisible by 4

2314⬇️

Number formed by tens and ones digit is 56, which is not divisible by 4

• 2314 is not divisible by 4

35056⬇️

Number formed by tens and ones digit is 56, which is divisible by 4

• 35056 is divisible by 4