Question

88) a + b = 6 (a - b = 4
ആയാൽ lab എത്ര ?
A. 5
B. 4
C
C. 10
D. 5

Answer 1

Answer:

Step-by-step explanation:

add equation (1) and (2), we get

2a = 6 + 4

=> 2a = 10

=> a = 5

substitute value of a in either of equation (1) or (2),

=> b = 1

Hence ab = 5.1 = 5

malyalam kollam