Question

2. वह कौन-सी सबसे बड़ी संख्या है, जिससे 517 और 815 में भाग दिया
जाय, तो शेष क्रमश: 13 और 17 बचे ।
(1) 40
(2) 41
(3)42 (4) 43​

Answer 1

Answer: option (3) - 42

517 me bhag dene par 13 shesh bachta hai

arthat, (517 - 13) = 504 us sankhya se puri tarah vibhajit hai

isi tarah (815 - 17) = 798 us sankhya se puri tarah vibhajit hai

wah badi sankhya 504 evam 798 ka HCF hogi.

504 = 2 x 2 x 2 x 3 x 3 x 7

798 = 2 x 3 x 7 x 19

HCF = 2 x 3 x 7

= 42

Answer 2

Answer:

3) 42

Step-by-step explanation:

First,subtract both 13 and 17 from 517 and 815 respectively.

Therefore,517-13=504 and 815-17=798

Now,take out the HCF of both 504 and 798 (you can take out the HCF either by the division method or by prime factorisation,here I will take out the answer by prime factorisation)

So,504=2×2×2×3×3×7

798=2×3×7×19

=>2×3×7=42

You will get the answer as 42.

If you need the answer in hindi or if you want it in division method,reply to me.