Question

mean of A B and C is equal to 16 find the mean of 3A - 1, 3 b - 1 and 3 C - 1​

Answer 1

Step-by-step explanation:

A+B+C/3=16

A+B+C=16×3

3(A+B+C)=16×3×3

3A+3B+3C-3=144-3

3A-1+3B-1+3C-1=141

(3A-1+3B-1+3C-1)/3=141/3

answer is 47