The number of cars 20 men can assemble in one day is 70 cars
let
- x = number of cars assembled by 20 men
8 men can assemble 28 cars in one day
20 men assemble x cars in one day
How to solve ratio equation
Number of men : Number of cars
8 : 28 = 20 : x
8/28 = 20/x
8 × x = 28 × 20
8x = 560
x = 560/8
x = 70 cars
2.
- 6 men can paint a building in 15 days
- 5 men to paint the same building x days
Number of men : number of days
6 : 15 = 5 : x
6/15 = 5/x
6 × x = 15 × 5
6x = 75
x = 75/6
x = 12.5 days
Therefore, it will take 5 men to paint the same building 12.5 days
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