Question

Find ratio 9/4 to 3/4

​

Answer 1

Answer:

Ratio = 3:1

Step-by-step explanation:

9 / 4 : 3 / 4

3 / 4 : 1 / 4

3 : 1

Answer 2

Answer:

Let the present ages of A and B be a and b

b

a

​

=  

4

9

​

 

a=  

4

9b

​

 

After 7 yrs ages of A and B will be a+7 & b+7

b+7

a+7

​

=  

3

5

​

 

3(a+7)=5(b+7)

3a+21=5b+35

3a=5b+14

3(  

4

9b

​

)=5b+14

4

27b

​

−5b=14

4

7b

​

=14

b=2×4=8

a=  

4

9×8

​

=9×2=18

Step-by-step explanation: