Teeth

An adult has a total of 32 permanent teeth. How many of them are molars if 1/4 of the teeth are incisors, another quarter are molars and the remaining quarter are canines?

Correct answer:

d =  12

Step-by-step explanation:

n=32  a=n/4=32/4=8 b=n/4=32/4=8 c=(nab)/4=(3288)/4=4 d=n(a+b+c)=32(8+8+4)=12



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