Question

Richard can read 1/4 of a book in 4/5 of an hour.At this rate ,how much can richard read in one hour

Answer 1

Assuming that Richard always reads with the same rate, there is a direct proportion between the time spent reading and the portion of book read:

`\text{portion}_1 : \text{time}_1 = \text{portion}_2 : \text{time}_2`

So, we can set up and solve the following proportion:

`(1)/(4) : (4)/(5) = x : 1 \iff x = ((1)/(4))/((4)/(5)) = (1)/(4)\cdot (5)/(4) = (5)/(16)`