Question

Find the following:
(i) 8 is 4% of which number?
(ii) 6 is 60% of which number?
(iii) 6 is 30% of which number?
(iv) 12 is 25% of which number?

Answer 1

Let the number be x.

(i) 4% of x = 8
⇒ (4/100) × x = 8
⇒ x = 800/4 = 200

(ii) 60% of x = 6
⇒ (60/100) × x = 6
⇒ x = 600/60 = 10

(iii) 30% of x = 6
⇒ (30/100) × x = 6
⇒ x = 600/30 = 20

(iv) 25% of x = 12
⇒ (25/100) × x = 12
⇒ x = 1200/25 = 48