A box of biscuits
A box of biscuits contains 36 biscuits. 20 biscuits have foil wrappers. 15 are chocolate biscuits with foil wrappers. If 9 are not chocolate and do not have a foil wrapper, then how many chocolate biscuits are there?
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Using geometry skills and degrees in a triangle, you can solve it to be:
ReplyDeletev = 43°
w = 18°
u = 21°