A) Rs. 3600
B) Rs. 3000
C) Rs. 2400
D) Rs. 180
Correct Answer: C
Solution :
10% of A = 15% of B = 20% of C \[\Rightarrow \]\[10A=15B=20C\]\[\Rightarrow \]\[\frac{10A}{60}=\frac{15B}{60}=\frac{20C}{60}\] \[\Rightarrow \] \[\frac{A}{6}=\frac{B}{4}=\frac{C}{3}\] \[\therefore \] A : B : C = 6 : 4 : 3 \[\therefore \] \[6x+4x+3x=7800\] \[\Rightarrow \] \[13x=7800x=\frac{7800}{13}=7x=600\] B's income \[=4x=4\times 600=2400\]You need to login to perform this action.
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