Question

2/3 of a number is less than the original by 10. The original number is ?​

a) 30
b) 36
c) 45
d) 60

Answer 1

Answer:

• The original number = 30 .

Step-by-step explanation:

Given that :

• ⅔ of a number is less than the original by 10.

To find :

• The original number.

Assumption :

• Let's consider the original no. be x .

Finding the original number :

ㅤㅤ→ 2x/3 = x - 10.

ㅤㅤ→ 2x = 3 (x - 10).

ㅤㅤ→ 2x = 3x - 30.

ㅤㅤ→ 2x + 30 = 3x.

ㅤㅤ→ 30 = 3x - 2x.

ㅤㅤ→ 30 = x.

ㅤㅤ→ x = 30.

.°. Option A is right .