Question

a school district needs 3 teachers for every 70 children. They expect to have 14,700 children in the district next year, at this time they have 612 teachers. How many more teachers are needed?

Answer 1

You can do this question in 2 ways

Answer 2

One way is a bit tedious.........keep on subtraction 70 from 14,700 students till you get 0. For everytime you subtract add 3 for teachers (because you need 3 teachers for 70 children)

Answer 3

*subtacting

Answer 4

There is another very easy method...but first tell me do you understand the first approach

Answer 5

18 more teachers are needed

Answer 6

u have to find how many 70 student froups are presnet.for dis divide 14700 by 70
which comes to210 gropus.
as each gropu needs 3 teachers,210 groups will need 210*3 teachers=630.
now,they say dat they have 612 teachers and how many more they need...so
required no. of teachers=630-612
=18teachers