Question

the respective ratio between two numbers is 4:7. If 4 is added to each of the two numbers their respective ratio is 3:5. what is the largest number.​

Answer 1

Step-by-step explanation:

let the ratio be 4x and 7x

after adding 4 ,

the ratio becomes =3:5

then,

A/Q

(4x+4)/(5x+4)=3/5

5(4x+4)=3(5x+4) [by cross multiple]

20x+20=15x+12

20x-15x=12-20

5x=-8

x=-8/5

largest no. =-8/5*4=-32/5