Question

Choose the correct option​

Answer 1

Answer:

1. A

2. B

Step-by-step explanation:

1. Let smaller number be x another will be x+15 .

And given sum of these two is 95 , so

$x + x + 15 = 95 \\ \implies 2x = 95 - 15 = 80 \\ \implies x = 40$

2.

Let age of A be 5x then age of b will be 7x. After 4 years ratio will be

$\frac{5x + 4}{7x + 4} = \frac{3}{4} \\ \\ \implies \: 20x + 16= 21x + 12 \\ \\ \implies 21x - 20x = 16 - 12\\ \\ \implies x = 4$

So age of B will be

$7x = 7 \times 4 = 28 \: yrs$