Question

A car factory produced 20 cars in a day. After the equipment was renovated and another one was brought to the factory, the factory started to produce 70 cars per day. By what percent did the speed of car production increase?

Answer 1

Step-by-step explanation:

150 percent

Answer 2

Answer:

350% production increased

Step-by-step explanation:

20 cars per day

:. X/100×20=70

X=350%