Question

Ruchi types 200 words in half an hour how many words she type in 12 minutes​

Answer 1

Step-by-step explanation:

half an hour = 30 mins

by direct variation method :-

200/30 = x / 12

x = 200 × 12 / 30

= 80 words

by unitary method :-

200 words in 30 mins

in 1 min = 200/30 = 20/3

so in 12min = 20× 12 /3 = 80mins

hope it helps :)