Christophe is participating in cycling event. Following chart shows the distance traveled by him in ten hours. Find the total number of hours of rest when he did not ride.

Marion picks a three digit number and subtract it from the same number after reversing order of its digits. If this difference is divided by 11, find the remainder.

A.

0

B.

1

C.

2

D.

Can not be determined without knowing exact number

You are given a number N with the property that every next digit of N is greater than the previous digit (so second digit from the left is greater than the first digit, and third digit is greater than the second and so on). Now multiply N by 9. What is the sum of the digits of the resulting number?