Question

Divide 240into 3 parts so that 1/3of the first1/4of second and 1/5 of third part are
equal

Answer 1

1st part = x

2nd part = y

3rd part = z

x/3 = y/4

4x = 3y

y = 4x/3

Now x/3 = z/5

5x = 3z

z = 5x/3

x + y + z = 240

x + 4x/3 + 5x/3 = 240

3x + 4x + 5x = 240 x 3

12x = 240 x 3

x = 240 x 3 /12 = 20 x 3 = 60

y = 4x /3  = 80

z = 5x/3 = 100