Question

Sol. (2) According to question, ( A+B+C+D=60 )
( A=frac{B+C+D}{2} )
( Rightarrow 3 A=60 Rightarrow A=R s .20 )
( B=frac{A+C+D}{3} )
( Rightarrow 4 B=60 Rightarrow B=R s .15 )
( C=frac{A+B+D}{4} )
( Rightarrow 5 mathrm{C}=60 Rightarrow mathrm{C}=mathrm{Rs} .12 )
( D=60-(20+15+12) )
( =60-47= ) Rs. 13

# Ex.3. A, B, C and D purchase a gift worth Rs. 60. A pays of what others are paying, В pays what others are paying and C pays of what others are paying. What is the amoung paid by D? (1) Rs. 16 (2) Rs. 13 (3) Rs. 14 (4) Rs. 15

Solution