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RD Sharma Solutions Class 10 Mathematics Solutions for Real Numbers Exercise 1.2 in Chapter 1 - Real Numbers

Question 3 Real Numbers Exercise 1.2

Find the largest number which divides 615 and 963 leaving the remainder 6 in each case

Answer:

Firstly, the required numbers which on dividing doesn’t leave any remainder are to be found.

This is done by subtracting 6 from both the given numbers. So, the numbers are 615 – 6 = 609 and 963 – 6 = 957.

Now, if the HCF of 609 and 957 is found, that will be the required number.

By applying Euclid’s division lemma

957 = 609 x 1+ 348

609 = 348 x 1 + 261

348 = 216 x 1 + 87

261 = 87 x 3 + 0.

⇒ H.C.F. = 87.

Therefore, the required number is 87

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