# What is the New Average Speed Now? If

The average speed of a car is 90 km/hr. The driver first decreases its average speed by 40% and then increases it by 50%. What is the new average speed now?

- 80 km/hr
- 81 km/hr
- 84 km/hr
- 85 km/hr

**Answer: (2) 81 km/hr**

**Explanation:-**

The average speed of a car = 90 km/hr.

The speed decreased by 40 %,

Then, the speed of car = 90 – 90 x 40/100

= 90 – 36

= 54 km/hr

And the speed increased by 50 %,

Then, the sped of a car = 54 + 54 x 50 /100

= 54 + 27

= 81 km/hr

Hence ,the new average speed of a car is 81 km/hr.