# Amina thinks of a number and subtracts 5/2 from it. She multiplies the result by 8. The result now obtained is 3 times the same number she thought of. What is the number?

**Solution:**

Let the number be x.

According to the given question,

8 (x - 5/2) = 3x

8x - 20 = 3x

Transposing 3x to LHS and -20 to RHS, we obtain

8x - 3x = 20

5x = 20

Dividing both sides by 5, we obtain

x = 4

Hence, the number is 4.

**Video Solution:**

## Amina thinks of a number and subtracts 5/2 from it. She multiplies the result by 8. The result now obtained is 3 times the same number she thought of. What is the number?

### NCERT Solutions Class 8 Maths - Chapter 2 Exercise 2.4 Question 1

**Summary:**

Amina thinks of a number and subtracts 5/2 from it. She multiplies the result by 8. The result now obtained is 3 times the same number she thought of. The number is 4.