Question

Using divisibility tests, determine which of the following numbers

are divisible by 7

(a) 2282
(b). 2341​

Answer 1

Answer:

a) 2282 ÷ 7

=> 326

Ans. 2282 is divisible by 7

b) 2341 ÷ 7

=> 1170.5

It will give remainder.

Ans. 24341 is not divisible by 7

Answer 2

(a) 2282

(b) 2341

answer :- (a) 2282

$= 2 \times 2 \\ = 4 \\ = 228 - 4 \\ = 224 \\ = 224 \div 7 \\ = 32$

Therefore 2282 is divisible by 7.

(b) 2341

$= 1 \times 2 \\ = 2 \\ = 234 - 2 \\ = 232 \\ = 232 \div 7 \\ = quotient = 33 \: and \: remainder \: = 1$

So 2341 is not divisible by 7