2. Questions Bank
  3. 4th Class
  4. Mental Ability
  5. Arithmetical Reasoning

4th Class Mental Ability Arithmetical Reasoning Question Bank Arithmetical Reasoning

  • question_answer
    A monkey climbs 30 feet at the beginning of each hour and rests for a while when he slips back 20 feet before he again starts climbing in the beginning of the next hour. If he begins his ascent at 8.00 a.m., at what time will he first touch flag at 120 feet from the ground?

    A) 4 p.m.                    

    B) 5 p.m.       

    C) 6 p.m.                    

    D) None of these

    Correct Answer: C

    Solution :

    Net ascend of monkey in 1 hr \[=\left (30-20 \right)=10\]feet So, the monkey ascends 90 feet in 9 hrs i.e. till 5 p.m. Clearly, in the next 1 hour i.e. till 6 p.m. the monkey ascend remaining 30 feet to touch the flag.


You need to login to perform this action.
You will be redirected in 3 sec spinner