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Tina's Pets

Math brain teasers require computations to solve.

 

Puzzle ID:#45100
Fun:*** (2.53)
Difficulty:* (0.97)
Category:Math
Submitted By:nogoodnames*nz*!!!
Corrected By:math12

 

 

 



Tina has a large collection of pets. 1/3 of them are cats, 1/4 of them are dogs, 1/5 are hamsters and the rest are goldfish. If Tina has 39 goldfish, how many pets in total does she have?

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Answer

She has 180 pets in total.

Cats + Dogs + Hamsters = 1/3 + 1/4 + 1/5 = 47/60.
Remainder = 13/60 = Number of Goldfish.
If 13/60 = 39, total number of animals = (39x60)/13 = 180.

In other words, 13/60 of Tina's pets are goldfish and because she has 39 goldfish, 39/13 = 3, so 1/60 = 3, 3x60 = 180, so 180 pets in total and the equation will look like, 20/60 + 15/60 + 12/60 + 13/60 = 60/60, or 1.

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Comments

kittygirl19cus*
Nov 07, 2009

im the 1st 1
mathnerdtus*
Jan 02, 2010

I loved this one! It made me think and it required math! It was pretty easy!
RRAMMOHAN*in*
Nov 10, 2012

An easy one, and could be solved mentally too.



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