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?

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Answer 1 · 2016-09-27T11:47:12

Nadya drove the fastest at $57.95 mph$

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: $55 mph$

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: $306000/5280 = 57.95 mph$

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

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

Pavel: $96000/1760 = 54.55 mph$

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

Nadya drove the fastest at $57.95 mph$

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