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A number k when divided by 21 gives remainder 9 find the remainder when same number is divided by 7

Posted by Gagana G 4 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 4 years, 3 months ago

he remainder is 2.

Step-by-step explanation:

Since we gave given that

when k is divided by 21, it gives a remainder of 9

So, when the same number k is divided by 7, we need to find the remainder.

Since 21 is divisible by 7.

and remainder will be 0.

In such a case, we will consider the remainders only.

So, 9÷7, we get 2 as a remainder

because, 9 = 7×1 +2

Hence, the remainder is 2.

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