b) Prabin types 765 words in 9 minutes. How many words would he type
in half an hour? How long does he take to type 12,750 words at the same
speed?
Answers
Step-by-step explanation:
765 words in 9 minutes. Then ,
Prabin types 765/9 i.e, 85 words in one minute.
Therefore in 30 minutes prabin will type 30 x 85 i.e., 2550 words.
Again, he types 1 word in 9/765 minutes.
Therefore , he will type 12750 words in 12750 x (9/765) minutes, i.e, 150 minutes.
Hence he will take two and a half hour.
Answer:
Prabin would type 2550 words in half an hour
It would also take him 2 hours and a half to type 12, 750 words
Step-by-step explanation:
To find how many words he will type in 30 minutes you divide 765 by 9 and you will get an answer of 85 words per minute
To find 30 minutes you just multiply 85 by 30 and you will get 2550
To find how long would he take to type 12750 words you divide 85 {words per minute} by 12750 which will give you 150 minutes
150 minutes is equal to 1 hour and a half.