Question

Rita type 2070 word in 1 1/2 h. how long will she take to type 3450? how many words will she type in 3hours
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Answer 1

Answer:she will take 2.5 hr to type 3450 words and she can type 4140words in 3hrs.

Answer 2

Step-by-step explanation:

Given:-

Rita type 2070 word in 1 1/2 h.

To find:-

how long will she take to type 3450?

how many words will she type in 3hours?

Solution:-

Number of words are typed by Rita in 1 1/2 hours

=2070

1 1/2 hours can be written as =3/2 hours

Rita can type 2070 words in 3/2 hours

Number of words typed by Rita in one hour

= 2070/(3/2)

=>(2070×2)/3

=>4140/3

=>1380

Rita can type 1380 words in 1 hour.

Time taken for One word can be typed

= 1/1380 hours

Time taken for 3450 words =3450×(1/1380)

=>3450/1380

=>345/138 hours

=>115/46

=>5/2

=>2 1/2 hours

Rita can type 3450 words in 2 1/2 hours

Number of words she can type in 3 hours

=>3×1380

=>4140

Rita can type 4140 words in 3 hours

Answer:-

1)Rita can type 3450 words in 2 1/2 hours

2) Rita can type 4140 words in 3 hours