Question

If the mean of 6,7 ,p,8,qis 9 then find the relation in p and q

Answer 1

Answer:

mean=sum of all digits/no of digits mean=6+7+p+8+q/5

=> 9=21+p+q/5

=> 9x5=21+p+q

=> 45=21+p+q

=> p+q=45-21

=> p+q=24