A) 10
B) 12
C) 22.5
D) 25
Correct Answer: D
Solution :
Suppose numbers are 3x, 4x, 5x, and 6x. Then. \[\frac{3x+4x+5x+6x}{4}=22.5\] \[18x=90\] \[x=5\] Hence, numbers are 15, 20, 25 and 30.You need to login to perform this action.
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