A long rope has to be cut to make 23 small pieces. If it is double folded to start with, how many times does it need to be cut?
A. 9
B. 11
C. 12
D. 23
Explanation: The rope is U shaped. So, the cut near the turn will cut off a piece of the rope and will leave two parallel strands of rope. To get 22 other pieces, 10 more cuts will be needed. Total number of cuts is 11.
Related Questions (Any University/Year)
- Nakir and Sabir is twin brother. Their combined age now is equal to their father's age. After 10 years
- Outside a square garden there is a path of 5 metres width around it, If the area of the path is 500 square metres, what is the area of the garden?
- যদি দুইজন টাইপিস্টের দুই পৃষ্ঠা টাইপ করতে দুই মিনিট সময় লাগে তাহলে ছয় মিনিটে আঠার পৃষ্ঠা টাইপ করতে কতজন টাইপিস্ট লাগবে?
- In a model high school, Physics course is divided into two sections. In section A, average score in the final exam was 92, while in section B, the average score was 84. If the average score of all 40 students in the course was 89, how many students are in Section A?
- A woman was 30 years old when her daughter was born. Her age is now 6 years more than three times her daughter's age. How old will be the daughter in 10 years?
- There are 5 CD racks in a room. Each rack contains at least 10 CDs but not more than 14 CDs. Which of the following could be the total number of CDs on all five racks?
- . A man purchased equal number of bananas at two different rates-one at the rate of 8 taka per dozen and the other at the rate of 10 taka per dozen. After that, he sold those bananas at an average rate of 11 taka per dozen and thus made a profit of 100 taka. How many dozens of banana did he purchase altogether?
- চিনির দাম ২০% কমল, কিন্ত চিনির ব্যবহার ২০% বৃদ্ধি পেল। এতে চিনি বাবদ ব্যয় শতকরা কত বাড়ল বা কমল?
- What number should replace the question mark?
- There is 50% chance that Rafiq will go to a fast-food restaurant for lunch and 50% chance that he will skip lunch. If he goes to a fast-food restaurant there is 60% chance that he will take only a sandwich and nothing else. If he decides not to take a sandwich, he will take a burger of a chicken pie. What is the probability that he will take a burger?
- How many balls had C started with?
- If two times of the daughter's age in years is included to the mother's age, the total is 70 and if two times of the mother's age is included to the daughter's age the total is 95. So the Mother's age is -
- Mr. Quddus rents a room for N months. He pays Tk. K for each of the first 7 months, and half that rate for each additional month. Find the total charge if N > 7.
- Rahim has a business of renting out costume products. For each costume he rents out. Rahim receives a commission of Tk. 15 plus 20% of the rental price. During one particular Tk. 7,950 .What is the total amount of commission he received in that month.
- একটি বাক্সে লাল ও কালো রঙের ৪৮টি বল আছে। উভয় রঙের বলের অনুপাত নিচের কোনটি হওয়া অসম্ভব?
- Machine A can produce 40 bolts per minute, whereas machine B can produce only 30 per minute. Machine A begans along to make bolts but it breakdown after 1.5 minute and machine B must complete the job . If the job requires 300 bolts, how long does the whole operation take?
- When x is divided by 7, the remainder is 6.Which of the following must be an even number ?
- After paying a 10 percent tax on all income over $3,000, a person had a net income of $12,000. What was the income before taxes?
- If 16% of 40% of a number is 8, the number is :
- Adnan pays 50% of a bill, Shafiq pays 40% of the remaining and the rest Tk. 120 is paid by Raiyan. How much did Adnan Shafiq Raiyan pay together?