Question

the H.C.F of two number is 21 and their L.C.M is 221. Times the H.C.F .if one of the number i slide between 200 and 300 then the sun of other number is what​

Answer 1

Answer:

Step-by-step explanation:

HCF of numbers * LCM of the numbers = Product of the numbers.

21 * 4641 = N * M

N * M = (3 *7) * (3 * 7 * 13 * 17)

N * M = 441 * 221 or 273 * 357

As, one number is in between 200 and 300. Then, we will get these two combination.

Answer 2

Answer:

15

Step-by-step explanation:

HCF of two number = 21

LCM of two number = 21 × 221 = 4641

As we know,

First number × Second number = HCF × LCM

Let two number be 21a and 21b respectively, so

21a × 21b = 21 × 4641

⇒ ab = 221

⇒ ab = 13 × 17

Suppose a = 13 and b = 17

The first number = 21a = 21 × 13 = 273

Second number = 21b = 21 × 17 = 357

So, sum of digit of 357 = 3 + 5 + 7 = 15.