Question

If 40% of a number is less than its 60% by 30, then the 20% of that number is:​

Answer 1

Answer:

9

Step-by-step explanation:

Answer 2

Answer:

Let a number be x, then

According to the question

x × (60/100) - x × (40/100) = 30

⇒ x × (20/100) = 30

⇒ x = 30 × 5

⇒ x = 150

Hence, 20% of 150

⇒ 150 × (20/100)

⇒ 30