Question

A machine can weld 10 times as many car bumpers as a human can in any given amount of time. In one day, a machine and a human can weld a combined 550 car bumpers. How many did the machine weld?

A: 450
B: 495
C: 500
D: 540

Answer 1

The answer is C: 500.

550 - 500 = 50 (by the humans).

50 x 10 = 500.

500 + 50 = 550.

So, the answer is C: 500.