Mohan is able to write 20 words in one hour. How many words would he be able to write in 10 minutes ?

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3.00

3.33

3.66

None of these

answer is B.

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Detailed Solution

Concept- Find the solution using the unitary technique. First, ascertain how many words he can produce in a minute. The amount of words he can produce in 10 minutes may then be calculated by multiplying this by 10.
He can write 20 words in an hour, as far as we know.
We also know that there are 60 minutes in a single hour.
This indicates that Mohan can write 20 words in a period of 60 minutes.
20 words

minutes
We'll now calculate how many words he can produce in a minute.
We will do this by dividing the given word count by the known time measurement.]
So, he can write

i.e.

words in a minute.
We must now determine how many words he can produce in ten minutes.
We will multiply this by 10 and the amount of words he can produce in a minute.
He can compose the following words in ten minutes:
So, the number of words he can write in 10 minutes is:

words
So, Mohan can write 3.33 words in 10 minutes.
Hence, the correct answer is option 2.
Syllabus: CBSE

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