Question

There are two numbers a and b . if a is decreased by 5 and b is decreased by 10, then the ratio is 5 : 2. if a is decreased by 10 and b by 5 then ratio is 9 : 5. what is the original ratio between a and b ?

Answer 1

Answer:

55:30

Step-by-step explanation:

a is decreased by 5=a-5

b is decreased by 10=b-10

a-5=9/b-5=5

solve it find a equation

2a-5b=-40

lly we can find

5a-9b=5

now solve both equation we get

a=55

b=30