Find the value of x in the expression 20% of 80 + 2x = 45% of 30 + 20% of 85.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 7(1/4).
Calculations:
⇒ 20% of 80 + 2x = 45% of 30 + 20% of 85
⇒ (20/100) × 80 + 2x = (45/100) × 30 + (20/100) × 85
⇒ 16 + 2x = 13.5 + 17
⇒ 16 + 2x = 30.5
⇒ 2x = 14.5
⇒ x = 7.25
⇒ x = 7(1/4)