Let no. of words type in 8 minutes = x
No. of words : Time :: No. of words : Time
540 : 30 min. :: x : 8 min
(less time, less words)
∴x=540×830=144
∴ No. of words typed = 144. or
Question 69
Sobi types 108 words in 6 minutes. How many words would she type in half an hour?