Question

In a class of 400 , 100 are smokers and 150 are chewers , 75 were list as both smokers and chewers. Find how many student were neither smokers nor gum chewers

Answer 1

Step-by-step explanation:

total students in class=400

in which 100 smokers and 150 chewers

then they students who smokers and chewers both is 75

then students who chewer or smokers are 175

now students who were neither smokers nor chewers are = 400-175=225

Answer 2

Step-by-step explanation:

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