Metric Unit Conversions

Convert 5 kilometers to meters.

• 500 meters

• 5000 meters

• 50,000 meters

• 0.5 meters

Answer explanation

To convert kilometers to meters, multiply by 1000. Therefore, 5 kilometers equals 5 x 1000 = 5000 meters. The correct answer is 5000 meters.

If a car travels at a speed of 90 km/h, how long will it take to travel 180 kilometers?

• 1 hour

• 2 hours

• 3 hours

• 4 hours

Answer explanation

To find the time taken, use the formula: time = distance/speed. Here, time = 180 km / 90 km/h = 2 hours. Therefore, the correct answer is 2 hours.

A recipe requires 250 grams of flour. How many kilograms of flour is needed?

• 0.025 kg

• 0.25 kg

• 2.5 kg

• 25 kg

Answer explanation

To convert grams to kilograms, divide by 1000. Thus, 250 grams ÷ 1000 = 0.25 kg. Therefore, the correct answer is 0.25 kg.

Convert 3 liters to milliliters.

• 300 milliliters

• 3000 milliliters

• 30 milliliters

• 30000 milliliters

Answer explanation

To convert liters to milliliters, multiply by 1000. Therefore, 3 liters x 1000 = 3000 milliliters. The correct answer is 3000 milliliters.

A rectangular garden has a length of 20 meters and a width of 10 meters. What is the area in square meters?

• 200 square meters

• 100 square meters

• 300 square meters

• 400 square meters

Answer explanation

To find the area of a rectangle, multiply the length by the width. Here, the area = 20 meters * 10 meters = 200 square meters. Therefore, the correct answer is 200 square meters.

• 45°F

• 77°F

• 68°F

• 82°F

Answer explanation

To convert 25°C to Fahrenheit, use the formula F = (9/5)C + 32. Plugging in 25 for C gives F = (9/5)*25 + 32 = 45 + 32 = 77°F. Thus, the correct answer is 77°F.

A cyclist travels 150 kilometers in 5 hours. What is the average speed in meters per second?

• 8.33 m/s

• 10 m/s

• 12.5 m/s

• 15 m/s

Answer explanation

To find the average speed, convert 150 km to meters (150,000 m) and 5 hours to seconds (18,000 s). Average speed = distance/time = 150,000 m / 18,000 s = 8.33 m/s. Thus, the correct answer is 8.33 m/s.

If a plot of land is 0.5 hectares, how many square meters is it?

• 500 square meters

• 5000 square meters

• 50000 square meters

• 500000 square meters

Answer explanation

1 hectare equals 10,000 square meters. Therefore, 0.5 hectares is 0.5 x 10,000 = 5,000 square meters. Thus, the correct answer is 5000 square meters.

A car's fuel efficiency is 15 kilometers per liter. How many liters of fuel are needed to travel 225 kilometers?

• 10 liters

• 15 liters

• 20 liters

• 25 liters

Answer explanation

To find the fuel needed, divide the distance by fuel efficiency: 225 km ÷ 15 km/l = 15 liters. Therefore, 15 liters of fuel are required to travel 225 kilometers.

Convert 0.75 kilograms to grams.

• 75 grams

• 750 grams

• 7500 grams

• 75000 grams

Answer explanation

To convert kilograms to grams, multiply by 1000. Thus, 0.75 kg x 1000 = 750 grams. Therefore, the correct answer is 750 grams.