Question

8a - b²=24, 8b + b² = 56 ആയാൽ a + b എത്ര?

• A. 3
• B. 7
• C. 8
• D. 10

Answer 1

Answer:

D. 10

8a - b²=24.......(1) , 8b + b² = 56 ......(2) (1) + (2) 8(a + b) = 80 a + b = 80/8 = 10