A car travels 40 miles per gallon of petrol. How many kilometres can it travel on 5 gallons of petrol? (From a KS2 CGP SATs question book). The solution in the book says 40/5 = 8
8x8=64
64x 5 = 320Km
I get the 64x5 =320Km, but not the first bit. Can anyone help please?
5 miles = 8Km - got it now - so no need to respond!
Of course! I can explain the first part of the solution to you.
To find out how many miles the car can travel on 5 gallons of petrol, we need to determine the number of miles it can travel on each gallon.
The car travels 40 miles per gallon of petrol. So, in this case, we divide the total distance (40 miles) by the number of gallons (1 gallon).
40 miles per gallon / 1 gallon = 40 miles
So, we can conclude that the car can travel 40 miles on 1 gallon of petrol.
Now, since we want to find out how far the car can travel on 5 gallons of petrol, we need to multiply the number of miles it can travel on 1 gallon (40 miles) by the number of gallons (5 gallons).
40 miles per gallon * 5 gallons = 200 miles
Therefore, the car can travel 200 miles on 5 gallons of petrol.
I hope this clears up any confusion. Let me know if you have any further questions!
Of course! I can help explain the first part.
To find out how many kilometres the car can travel on 5 gallons of petrol, we need to convert the miles per gallon into kilometres per gallon.
To convert miles to kilometers, we use the conversion factor that 1 mile is approximately equal to 1.60934 kilometers.
So, we can start by determining how many kilometers the car can travel on 1 gallon of petrol.
Since the car travels 40 miles per gallon, we can calculate the distance in kilometers by multiplying 40 by the conversion factor: 40 miles per gallon * 1.60934 kilometers per mile.
This gives us: 40 * 1.60934 = 64.3736 kilometers per gallon (approximately).
Now that we know how many kilometers the car can travel on 1 gallon of petrol, we can multiply this value by 5 (the number of gallons) to find out how many kilometers it can travel on 5 gallons.
So, 64.3736 kilometers per gallon * 5 gallons = 321.868 kilometers (approximately).
Therefore, the car can travel approximately 321.868 kilometers on 5 gallons of petrol.