Let their investments be Rs.
x for 14 months, Rs.
y for 8 months and Rs.
z for 7 months respectively.
Then, 14x : 8y : 7z = 5 : 7 : 8.
Now, |
14x |
= |
5 |
⟺ 98x = 40y ⟺ y = |
49 |
x |
8y |
7 |
20 |
And, |
14x |
= |
5 |
⟺ 112x = 35z ⟺ z = |
112 |
x = |
16 |
x. |
7z |
8 |
35 |
5 |
∴ x : y : z = x : |
49 |
x |
: |
16 |
x |
= 20 : 49 : 64. |
20 |
5 |