in the year 2010 in the village there were 4000 people who were literate. every year the number of literate people increases by 400 how many people will be literate in the year 2020?
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Answered by
42
Answer:
here
population of literate people in2010= 4000
increase in n literate people per year = 400
no of year =10
increase in literate people after 10 years = 400×10=4000
no.of literate people in 2020=4000+4000
=8000
Answered by
45
Answer:
you can also refer the above pic if you are unable to understand my written sum ..
Step-by-step explanation:
The increase in number of literate people forms an A.P.
No.of literate people in the year 2010=4000
therefore, a= 4000
Increase in literate people per year =400
therefore, d= 400
No. of years from 2010 to 2020 will be n .
2020-2010= 10
therefore , n =10
No. of literate people in 2020 will be given by formula
tn=a+(n-1)d
t10 = 4000+(10-1)×400
t10=4000+9×400
t10=4000+3600
t10=7600
therefore, the number of literate people in the year 2020 will be 7600 people.
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