Asked by Anonymous

How would you work this problem?

The odometer of the family car read 15951 when the driver noticed that the number was palindromic. "Curious," said the driver. "It will be a long time before that happens again." But two hours later, the odometer showed a new palindromic number. How fast was the car traveling in those two hours?
Answered by Ms. Sue
A palindromic number or word reads the same forward and backward.

Cars travel an average of 40 to 70 miles per hour. In two hours the car probably traveled between 80 and 140 miles.

Which digits can you change in 15951 to give a palindrome representing 80 to 140 miles?

What is that in mph?

If you post your answer, we'll be glad to check it.


Answered by Anonymous
I have no clue!
Answered by Anonymous
25952?
Answered by Anonymous
Would the answer be 50 mph?
25952 - 15952=10000 divided by 2 hours?
Answered by Old Lady
You have to consider that 25952 is not reasonable. A car could not travel 5,000 miles in 1 hr (10000/2). Not even a jet engine could travel that fast.

Why not try using EXCEL to create a table at various speeds and observe what you come up with.
Answered by Ms. Sue
I already told you that the car probably traveled between 80 and 140 miles in two hours. That's a long way from 10,000 miles!!!

Hint: the second digit must be 6.
Answered by Anonymous
16961-15951=1000/2=51 mph?
Answered by Anonymous
16961
16961-15951=1010/2=51 mph?
Answered by Ms. Sue
Nope. 1000/2 = 50
Answered by Ms. Sue
1000/2 does not = 50.
Answered by Ms. Sue
How about 16061?
Answered by Anonymous
Ok...thanks!
Answered by anshul
110
Answered by jpzea uhmqg
jfngp geflqa bjxzdqnf zqdnxs mocdrw evzjclpy johxm
Answered by Paul
The next palindromic number would be
16061 so subtract 15951 from that then divide by the 2 hours


16061-15951=110

110/2X X=55
There are no AI answers yet. The ability to request AI answers is coming soon!