Question

2. a) Find: 12.5% of 40kg 12] b. Find the number which when decreased by 20% becomes 64.​

Answer 1

Answer:

Let the required number be x

Then according to the question, 12 ½ % × x = 64

= 12.5 % × x = 64

= (12.5 × 100) × x = 64

x = (64/100)/ 12.5

x = 64 × 8 = 512

Therefore 512 is the number whose 12 ½ % is 64.

Step-by-step explanation: