The Riddle that is Driving Social Spring Crazy

On Tuesday night, my friend messaged me a riddle. An entire day later...I'm still trying to solve it and it's driving me crazy! 

While I'm not the best at math, I love solving word problems and riddles when they pop up on Facebook. But this one has me stumped!

Check it out below:

Maybe some of you have seen it on Facebook, and can help a sister out!

Comment the answer below, let's work together on this haha!

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