Question

in a village there are men women and boys in the ratio 6:5:4 if 40 men 20 women and 120 boys joined the village and the new ratio becomes 4:3:5 find the number of men initially in the village. (the ans must be 120) pls solve it quickly​

Answer 1

Answer:

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Step-by-step explanation:

let the number of men, women and boys be 6x,5x,4x

now, ATQ

new number of men =40

new number of women = 20

new number of boys = 120

so therefore

men = 6 X + 40

women = 5 x + 20

boys = 4 x + 120

in order to find x we have to take any two

so

6x+40/5x+20=4/3

=cross multipliply

=>18x+120=20x+80

=> -2x=-40

x=20

therefore number of men initially =6*20=120