Answer: Raju travels at a higher speed.
Step-by-step explanation:

Speed inversely proportional to time.
As time taken to cover a particular distance decreases the speed will increase.
Raju covers a certain distance in 1 hour.
Sham covers the same distance in 2 hours.
1< 2
Thus Raju travels at a higher speed.
Answer:
y= -1
Explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Answer:
No, because the ratio of pay to hours is not the same for each pair of value.
Answer:
Option C will be the answer.