L. The ratio between the present ages of Vijay and Sanjayis 6:7. Three

1.	L. The ratio between the present ages of Vijay and Sanjayis 6:7. Three years hence the ratio will become 7:8,respectively. What is the present age of Vijay?
Answer» Let present age of Vijay be x and Sanjay be y x:y=6:77x=6yx=6y/7 After 3 years,x+3:y+3=7:88(x+3)=7(y+3)8x+24=7y+218x-7y=-3 Put x=6y/7 8(6y/7)-7y=-348y-49y=-3*7-y=-21y=21 x=6(21)/7=18 So, present age of Vijay is 18 and Sanjay is 21

L. The ratio between the present ages of Vijay and Sanjayis 6:7. Three years hence the ratio will become 7:8,respectively. What is the present age of Vijay?

Answer»

Let present age of Vijay be x and Sanjay be y

x:y=6:77x=6yx=6y/7

After 3 years,x+3:y+3=7:88(x+3)=7(y+3)8x+24=7y+218x-7y=-3

Put x=6y/7

8(6y/7)-7y=-348y-49y=-3*7-y=-21y=21

x=6(21)/7=18

So, present age of Vijay is 18 and Sanjay is 21