Question

Which of the following inferences is correct for the given graph?

• A. 2 robots can work 9 days.
• B. 4 robots can work 20 days.
• C. 4 robots can work 16 days.
• D. 1 robot can work 3 days.

Answer 1

The correct option is C 4 robots can work 16 days.

Let’s write down 4 ordered pairs from the graph.
A - (3, 12)
B - (5, 20)
C - (8, 32)
D - (11, 44)


The relation from the given graph is:
Number of days = number of robots × 4
So, for 4 robots, the number of days will be 4 × 4 = 16.
Hence, 4 robots can work 16 days.