A group of students went out for lunch
after their examination. They were to
share the expenses equally. The total bill
was R200. Ten of the students did not
have any money, so each of the others
had to pay an extra R1. Determine the
number of students in the group.

number sof student of the group is 50

Step-by-step explanation:

let the number students be x

total bill is Rs 200

each student will pay =200/x

now 10 students do not have the money

so x - 10 students will pay the bill of Rs 200

according to the problem

= + 1

or, - = 1

or, 200 ( - ) = 1

or, 200() = 1

or, 200 X 10 = x(x-10)

or, - 10x - 2000 = 0

or, - 50x +40x - 2000 =0( using middle term factor)

or, (x - 50) (x+40) = 0

x = 50 ( x = -40 for number of students it is not possible)

answer: there are x+184 pages in olivia's book.

step-by-step explanation:

let the total number of pages in the book which olive has already read be x.

then if olive has 184 pages left to read, then the total number of pages are in olive's book= pages she has read+pages she has left to read

therefore, the total number of pages in olivia's book=

hence, there are x+184 pages in olivia's book.

step-by-step explanation:

answers available in this download

(pearson%2c%25202012)%2520bbs.pdf& usg=aovvaw1obmtxnfghfgxhx0urh_je