Question

The HCF of two numbers is 11 and their LCM is 693. If one of the numbers is 77, find the 16
other.
(A) 75
(B)99
(C) 77
(D)97​

Answer 1

The HCF and LCM of 77 and 99 is 11 and 693 so the answer is B(99)

Answer 2

Answer:

Option B

Step-by-step explanation:

Given :-

The HCF of two numbers is 11 and their LCM is 693. If one of the numbers is 77.

To find:-

Find the other number ?

Solution:-

Given that

The HCF of two numbers = 11

The LCM of two numbers = 693

On of the numbers = 77

Let the another number be b

We know that

The two numbers a and b and their LCM and HCF are L and H respectively then L×H = a×b

On Substituting the values in the above formula

=> 693×11 = 77×b

=> 77×b = 693×11

=> b = 693×11/77

=> b = 693/7

=>b = 99

The other number = 99

Answer:-

The other number for the given problem is 99

Used formula:-

• The two numbers a and b and their LCM and HCF are L and H respectively then L×H = a×b