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The game of Nudge is played with a set of 15 pieces called 'bumps! Some bumps weigh 15 g, some weigh 30 g and some weigh 40g A full set of bumps has a total
weight of 420 g and contains a different number of each type.
How many 30 g bumps are there in a full set of 15 bumps

Respuesta :

Some bumps weigh 15g, some weigh 30g and some weigh 40g. A full set of bumps has a total weight of 420g and contains a different number of each type. How many 30 g bumps are there in a full set of 15 bumps? the answer is 8.

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