A theater can hold 120 giants or 144 elves. If 90 giants are already inside, how many elves can also be admitted?
2 answers:
Answer:
36 elves
Step-by-step explanation:
Using proportions
We have space for 30 more giants
30 giants x elves
------------- = ----------
120 full 144 elves full
Using cross products
30*144 = x*120
Divide each side by 120
30*144/120 = 120x/120
36 = x
We can have 36 elves
Answer:
36
Step-by-step explanation:
make proportion giants to elves
120/144 = 90/x cross multiply
120x =144*90
120x =12960 divide by 120
x = 108
so if there are 90 giants in the theater there are 108 elves also
considering that total 144 elves can be in the theater subtract 144 and 108 so 36 more elves can be admitted
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