LET the total investment be
RS
.
x
.
Then, R =
x
4
R + V =
75
x
x
=
3
x
100
4
V =
3
x
-
x
=
x
.
4
4
2
A =
x
-
x
+
x
=
x
4
2
4
R : A : V =
x
:
x
:
x
= 1 : 1 : 2.
4
4
2
THUS
, both I and II are needed to get the answer.
Correct answer is (E).
A = x - Correct answer is (E).