Question

Guests had to choose their meals from beef, chicken or vegetarian.

1/3 of the geusts chose beef.

5/12 of the geusts chose chicken.

23 of the guests chose vegetarian.

How many guests were at the wedding?

Answer 1

1/3+5/12=4/12+5/12=9/12=3/4 of guests choose meat
1-3/4=1/4 of guests are vegetarians
so
23 guests is 1/4 of all guests
23*4=92 all guests