Question

Plz answer this question! ​

Answer 1

Answer:

option c

Step-by-step explanation:

let's take a=5k, b=3k

so

3a+2b =3*5k +2*3k= 15k+6k=21k

3a-2b = 15k-6k =9k

so ratio = 21k/9k = 7/3

Answer 2

Answer:

let a=5x and b=3x

now (3a + 2b )= 3(5x)+2(3x)

=15x + 6x

21x

similarly simplifying other part we get

=15x - 6x

=9x

now their ratio will be

21x: 9x

(x will be canceled )

21:9

(canceling common factors)

we get

7:3

hence option c is correct

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