Question

pls answer this question

Answer 1

Answer:

Option - (A)

Step-by-step explanation:

Let 11(a - 1) = 13(b - 1) = x.

Hence, the least possible value for x = 11 * 13.

If x = 11 * 13, we get

(i)

11(a - 1) = x

11(a - 1) = 11 * 13

(a - 1) = 13

a = 13 + 1

a = 14

(ii)

13(b - 1) = x

13(b - 1) = 11 * 13

(b - 1) = 11

b = 11 + 1

b = 12

Therefore, a + b = 26.

Hope this helps!

Answer 2

Answer:

26

Step-by-step explanation:

Take the LCM of 11 and 13 which is 143

Therefore,

11* (14-1)=13(12-1)

a=14

b=12

a+b=26