A) \[A\to p;B\to q,C\to r;D\to s\]
B) \[b\to r;B\to p,C\to s;D\to q\]
C) \[A\to q;B\to r,C\to p;D\to s\]
D) \[A\to s;B\to r,C\to q;D\to p\]
Correct Answer: C
Solution :
Average length \[=\frac{16+14+15}{3}\] \[=\frac{\text{sum}\,\text{of}\,\text{first}\,\text{10}\,\text{natural}\,\text{numbers}}{10}\] \[=\frac{55}{10}=5.5\] \[\text{Speed}=\frac{\text{Distance}}{\text{Time}}\] \[=\frac{80}{2}\,=40\,km/hr\]. Distance = speed \[\times \] time \[\text{time}\,=\frac{\text{Distance}}{\text{speed}}\] \[t=\frac{175}{35}\] t = 5 hours
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