SSC MTS 2 Aug 2019 Shift 3 Paper

Short Trick:
Let C be 100x
Then B will be 75x and A will be 120% of 75x
∴ A = 90x
Option 1 is correct
Detailed Solution:
Let the value of C be x
⇒ B = 3x/4
⇒ A = [3x/4] × 120% = 9x/10
⇒ A/C = 9/10
⇒ A/C = 0.9
⇒ A = 0.9C
∴ Required relation is A = 0.9C.