Question

If 90% of 750 + 70% of 850 = x% of 12700, then find the value of x.

• A. 5
• B. 30
• C. 20
• D. 10

Answer 1

Answer:

D. 10

90% of 750 + 70% of 850 = x% of 12700 ⇒ 750 × (90/100) + 850 × (70/100) = 12700 × (x/100) ⇒ 675 + 595 = 127x ⇒ 1270/127 = x x = 10