# Nadya and Pavel are driving along a road. Nadya is travelling at a speed of 85 " feet per second " and Pavel at 1600 " yards per minute" Who was travelling faster?

Sep 27, 2016

Nadya drove the fastest at $57.95 m p h$

#### Explanation:

Although they are all speed, they are in different units. They need to be converted to the same unit before they can be compared.

Max: $55 m p h$

Nadya: 85 feet per second .... she will drive 60 times further in a minute and 60 times further in an hour.

#85 xx 60 xx 60 = 306000 feet per hour.
There are 5,280 feet in a mile.

Nadya: $\frac{306000}{5280} = 57.95 m p h$

Pavel: 1600 yards per minute - he will drive 60 times further in an hour.

$1600 \times 60 = 96 , 000$ yards per hour
There are 1,760 yards in a mile

Pavel: $\frac{96000}{1760} = 54.55 m p h$

NOw we can compare: 55mph to 54.55 mph to 57.95mph

Nadya drove the fastest at $57.95 m p h$