Question

Divide 4000 into 2 parts such that 15% of the first part equals 25% of the 2nd part? -

Answer 1

Solution :-

Let the first part be 'x' and the second part be (4000 - x)

Now, according to the question.

15 % of the first part equals to the 25 % of the second part.

⇒ (x*15)/100 = [25*(4000 - x)]/100

⇒ 3x/20 = (4000 - x)/4

After cross multiplication, we get.

⇒ (3x*4) = 20*(4000 - x)

⇒ 12x = 80000 - 20x 

⇒ 12x + 20x = 80000

⇒ 32x = 80000

⇒ x = 80000/32
 
⇒ x = 2500

Therefore, the other part = 4000 - 2500

= 1500 

So, the first part is 2500 and the second part is 1500.

Answer.

Answer 2

Answer:

Step-by-step explanation:

First part =x

Second part =4000-x

So,x+15/100=25×4000-x/100

3x/20=4000-x/4(crossmultiplication)

( 3x×4)=20(4000-x)

12x=80000-20x

12x+20x=80000

32x=80000

X=2500

Second part =4000-x

=1500

Hence firs first part will be e rupees 2500 and second part will be rupees 1500