If the number of cars will be 48. Then the number of cars that run on petrol will be 30.
What are ratio and proportion?
A ratio is an ordered set of integers a and b expressed as a/b, with b never equaling 0. A percentage is a mathematical expression in which two things are equal.
160 cars and vans, in the ratio of 3:7.
Let x be the number of cars and y be the number of vans. Then we have
x + y = 160
and
x/y = 3/7
(x + y)/y = 10/7
160/y = 10/7
y = 112
Then the value of x will be
x + 112 = 160
x = 48
Then 25% of cars are electric and 1/8 of cars are diesel. Then the number of the cars that run on petrol will be
Let z be the number of petrol cars.
z + 0.25 (48) + 48/8 = 48
z + 12 + 6 = 48
z = 30
More about the ratio and the proportion link is given below.
https://brainly.com/question/14335762
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