A day full of math games & activities. Find one near you.

Kusum always forgets how to convert miles to kilometres and back again. However she remembers that her car’s speedometer shows both miles and kilometres. She knows that travelling 50 miles per hour is the same as travelling 80 kilometres per hour. To cover a distance of 200 km, how many miles Kusum would have to go?

Solution:

To cover 200 km @ 80 km/hour implies:

Time Taken to cover 200 km = 200/80 = 2 ½ hours

The number of miles covered in 2 ½ hours = 50 × 2 1/2 = 125 miles

Hence to cover a distance of 200 km, Kusum will have to cover 125 miles.

✦ Try This: Kusum always forgets how to convert miles to kilometres and back again. However she remembers that her car’s speedometer shows both miles and kilometres. She knows that travelling 45 miles per hour is the same as travelling 72 kilometres per hour. To cover a distance of 288 km, how many miles Kusum would have to go?

To cover 288 km @ 72 km/hour implies:

Time Taken to cover 288 km = 288/72 = 4 hours

The number of miles covered in 4 hours = 45 × 4 = 180 miles

Hence to cover a distance of 288 km, Kusum will have to cover 180miles.

☛ Also Check: NCERT Solutions for Class 8 Maths Chapter 13

NCERT Exemplar Class 8 Maths Chapter 10 Problem 105

Kusum always forgets how to convert miles to kilometres and back again. However she remembers that her car’s speedometer shows both miles and kilometres. She knows that travelling 50 miles per hour is the same as travelling 80 kilometres per hour. To cover a distance of 200 km, how many miles Kusum would have to go

Summary:

Kusum always forgets how to convert miles to kilometres and back again. However she remembers that her car’s speedometer shows both miles and kilometres. She knows that travelling 50 miles per hour is the same as travelling 80 kilometres per hour. To cover a distance of 200 km, Kusum will have to travel 125 miles

☛ Related Questions: