SSC CHSL Model Paper 11

Question : 56 of 100

Marks: +1, -0

A, B, C and D purchase a gift worth Rs. 60. A pays

1/2

of what others are paying, B pays

1/3

rd of what others are paying and C pays

1/4

th of what others are paying. What is the amount paid by D?

Solution:

A + B + C + D = 60

\A={\B+\C+\D}/2

⇒3\A=60⇒\A=20

\B={\A+\C+\D}/3

⇒4\B = 60 ⇒ \B = \Rs. 15

\C={\A+\B+\D}/4

⇒ 5C = 60 ⇒ B = Rs. 12
D = 60 - (20 + 15 + 12) = Rs. 13

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