Question

at the
party memmber gives a gift to tha rest .
there were 182 gifts at the party.
find the number of members
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Answer 1

Answer:

..

....

................ .. ..

Answer 2

Answer:

14

Step-by-step explanation:

let the number of members be n

each gave gift to the rest. means if a member a gave gift to b then b also gave gift to a. In that way each member will give (n-1) gift. so total number of gifts will be n*(n-1) which is 182 (given)

n(n-1) = 182

n^2 - n -182 = 0

n^2 -14n + 13n - 182 = 0

n(n-14) + 13(n-14) = 0

(n-14)(n+13) = 0

n = 14 and -13

member cannot be negative

hence, n= 14