Home » Aptitude » Ratio, Proportion » Question
  1. ₹ 3,000 is divided between A, B and C, so that A receives 1/3 as much as B and C together receive and B receives 2/3 as much as A and C together receive. Then the share of C is
    1. ₹ 600
    2. ₹ 525
    3. ₹ 1,625
    4. ₹ 1,050
Correct Option: D

A =
1
(B + C)
3

⇒  3A = B + C...(i)
B =
2
(A + C)
3

⇒  3B = 2A + 2C ...(ii)
From equation (i),
3A = B + C
⇒  9A = 3B + 3C
⇒  9A = 2A + 2C + 3C
⇒  7A = 5C ...(iii)
From equation (ii),
3B = 2
5C
+ 2C
7

⇒  21B = 10C + 14C
⇒  21B = 24C
⇒  7B = 8C ...(iv)
From equations (iii) and (iv),
C =
7A
=
7B
58

∴ 
A
=
B
=
C
587

C’s share =
7
× 3000
(5 + 8 + 7)

= ₹
7
× 3000 = ₹ 1050
20



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