Question

19] HCF of two numbers is 11 and their Icm is 693 if
one of the numbers is 77, the other number is

90
99
70
88​

Answer 1

Step-by-step explanation:

Let two numbers be x and y.

Let the factors common to both x and y be a set called a.

Let the factors which are only in x which is not there in y be x1.

Let the factors which are only in y which is not there in x be x2.

Now HCF is variable a itself.

And LCM is a * x1 * x2.

Given, a = 11 .....1

a * x1 * x2 = 693........2

Also a * x1 = 77 .........3

We need to find a * x2 = ?

From equation 2 and 3 we get, x2 = 9 ....4

From 1 and 4 we get , a * x2 = 9 * 11 = 99.

Please mark this brainlest

Answer 2

Answer:

99

Step-by-step explanation:

LCM (x,y) × HCF (x,y) = x × y

693 × 11 = 77 × y

7623 = 77y

y = 99