Solution 4:
Time taken for the first half of the journey: Distance / Speed = 120 miles / 60 mph = 2 hours.
Time taken for the second half of the journey: Distance / Speed = 120 miles / 40 mph = 3 hours.
Total time for the journey: 2 hours + 3 hours = 5 hours.
Total distance: 240 miles.
Average speed = Total Distance / Total Time = 240 miles / 5 hours = 48 mph.
Problem 5:
Three friends shared a pizza equally. If each friend had 3 slices, how many slices were in the entire pizza?
Solution 5:
If each friend had 3 slices, then the total number of slices would be 3 slices/friend × 3 friends = 9 slices.
Riddle 7:
I am a three-digit number. My tens digit is five more than my ones digit, and my hundreds digit is eight less than my tens digit. What number am I?
Solution 7:
The number is 194.
Hundreds digit = 1
Tens digit = 9 (5 more than the ones digit)
Ones digit = 4
So, 194 satisfies the conditions.
