Question

38. The manufacturing cost for a certain automobile is n dollars. The manufacturer

sells the car to a retailer at 5 percent more than cost. If the retailer sells the car to a
consumer for 10 percent more than he paid for it, how many dollars does the car
cost the consumer?
(A)1.050n
(D)1.515n
(B)1. 150n
(E)1.555n
(C)1. 155n

Answer 1

• C) 1.155n

Explanation:

Cost price is n.

Add 5%

• n + 5% =
• n + 0.05n =
• 1.05n

Now add 10%

• 1.05n + 10% =
• 1.05n + 0.1*1.05n =
• 1.05n + 0.105n =
• 1.155n

Correct choice is C.