Question

The ratio between two numbers is 2:3.If each number is increased by 4, then the ratio becomes 5:7.Theb the first number is

Answer 1

SOLUTION :

The ratio between two number = 2:3     (given)

Let first number be 2x

and second number be 3x

According to the question,

When the each number was increased by 4, the ratio becomes 5:7

So here is the equation-

$\bf \frac{2x+4}{3x+4} = \frac{5}{7}$

⇒ $\bf 7(2x+4)=5(3x+4)$    [ cross multiplication ]

⇒ $\bf 14x + 28 = 15x +20$

⇒ $\bf 28-20=15x-14x$

⇒ $\bf 8=x$

Hence

The first number is 2x = 2 × 8 = 16

Answer 2

Answer:

here is your ans......

Step-by-step explanation:

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