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Average number of chocolates distributed in a class of 40 students is 5. If x number of students joined newly in the class and the average goes to 4, then find the number of students newly joined?

A8

B10

C12

D16

Answer:

B. 10

Read Explanation:

total=40*5=200 200/(40+x)=4 40+x=50 x=10


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