Question

would weigh 2.5 kg?
Reena types 600 words in four minutes. How much time will she take to type 3,150
words​

Answer 1

words = 600:3150

minutes = 4:x

=> 600/3150 = 4/x

=> 600×x = 3150×4

=>x=3150×4/600

=> x=21