Answer:
128/15 min or 8.5 min
Step-by-step explanation:
By using unitary method,
Time required to paint 5/8 of wall = 16 min.
Time required to paint 1/1 of wall = 16*8/5
Hence, Time required to paint 1/3 of wall = 16*8/5*1/3
The answer is A
V = 272.3 cube units
The surface area is 418.34 square units
The correlation coefficient r of the data set is <em>-0.28</em>