Question

divide 1600 in three parts in such a way that one seventh of the first part ,one fifth of second part ,one fourth of third part are equal​

Answer 1

Step-by-step explanation:

let first part is a

second part is b

third part is c

a*1/7 = b*1/5 = c*1/4 = x

a = 7x

b = 5x

c = 4x

and a+b+c = 1600

7x + 5x + 4x = 1600

16x = 1600

x = 100

first part = 7x =7*100 = 700

second part = 5x = 5*100 = 500

third part = 4x = 4*100 = 400