SOLUTION: This is probably an easy one but the answer I thought was right has been marked wrong can anyone help please? In a bag there are 8 blue triangles, 5 blue squares, 10 red triangl

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Question 638059: This is probably an easy one but the answer I thought was right has been marked wrong can anyone help please?
In a bag there are 8 blue triangles, 5 blue squares, 10 red triangles and 7 red squares. What is the probability that a shape taken out of the bag will be a red square.
I thought it would be 7 in 30
Any help would be greatly appreciated

Thanks
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
The answer is 7%2F30, so maybe it wanted the answer in decimal form? or as a percentage?