Correct Answer - Option 2 : 84
Calculation:
Let the two-digit number be (10x + y).
Now, (10x + y) > 3/4 of 100
⇒ 10x + y > 75 ----(1)
Also, 10x = 2y ----(2)
And, 10x + y = 12 ----(3)
From equation (2) and (3), we get
⇒ 2y + y = 12
⇒ 3y = 12
⇒ y = 12/3 = 4
From (2),
⇒ 10x = 2y = 8
∴ The two-digit number is 84.