Solve This Riddle Steemers #STQ12

in #contest7 years ago (edited)

Steemians i am back with another riddle image 

i bet you can't solve it in 50 second

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Please upvote, Resteem and comment to get correct answer 

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Thinking out of the box... 13.3+15.7+1=30 or (11-1)+(13-3)+(15-5)=30

This post has received a 0.60 % upvote from @booster thanks to: @batman-superman.