Roni can walk a certain distance in 40 days when he rests 9 hours a day. How long will be take to walk twice the distance, twice as fast and rest twice as long each day?
A 35 days
B 55 days
C 100 days
D 82 days
Solution
Correct Answer: Option C
এখানে , ১ম ক্ষেত্রে রনি প্রতিদিন হাটে =24-9=15 ঘণ্টা 2য় " " " " =24-(2×9) " =24-18=6 ঘণ্টা করে