Question

Shriya thinks of a number and subtract 2.5 from it. She multiplies the result by 8. The result now

obtained is 3 times the same number she thought of .what is the numbers?​

Answer 1

Answer:

4

Step-by-step explanation:

Let the number be x

according to the condition given

(x-2.5)*8= 3x

after opening the brackets we get

8x-20=3x (subtracting 8x from both sides we get)

8x-20-8x=3x-8x

-20=-5x (Divide -5 from both sides)

-20/-5=-5x/-5

4=x Answer

Answer 2

Lets assume the number to be x.

First, lets break the question step-by-step for easy understanding.

Step 1: 5/2 is subtracted from x.

Step 2: The answer in Step 1 is multiplied by 8.

Step 3: The answer derived in Step 2 is 3 times of x.

Hence, the equation could be formed as follows:

(x-5/2)*8=3x

(2x-5)*4=3x

8x-20=3x

8x-3x=20

5x=20

x=20/5

x=4

Therefore, the number is 4.

Hope this helps. Thank you