There are 40 socks in a drawer. 70% of the socks are red and the rest are blue. What is the minimum number of socks that must be taken from the drawer without looking in order to be certain that at least two red socks have been chosen?
A. 2
B. 14
C. 18
D. 20
JUIBA (Unit-G)Set-1মানসিক দক্ষতা(IQ)গাণিতিক সমস্যাIQ-4 (Topic Practice)JU - ⚡ অনলাইন প্রশ্নব্যাংক দেখুন 💥
সঠিক উত্তরঃ
B.
14
Explanation:
Related Questions (Any University/Year)
- Lima is 6 years older than her sister Sharmin, and Jamal is 5 years older than Lima. If the total of their ages is 41, how old is Jamal?
- Six years ago Anita was P times as old as Ben. Anita is now 17. How old is Ben now in terms of p?
- A sum of BDT 200 will be divided among 5 swimmers, named Emran, Durjoy, Chopol, Billal and Anabi, who have just finished a swimming competition. Everyone will receive at least BDT 5 and no two swimmers will receive the same amount of money. Emran has come \(1^{st}\) and will get BDT 80; Durjoy has come \(2^{nd}\), Chopol is \(3^{rd}\), Billal is \(4^{th}\) and Anabi is last. Moreover, the distribution of money is subject to the following conditions: • No one will get any fractional amount of money. • The swimmer who finishes earlier must receive more money than the swimmer(s) he defeats. What are the greatest and least amount of money, consecutively, that Durjoy can receive?
- If X4=81 and Y2=49, then maximum possible value for Y-X is
- Successive discount of 25% and 20% are equal to a single discount of -
- লঞ্চ ও স্রোতের গতিবেগ যথাক্রমে ঘন্টায় ১৮ কি.মি. ও ৬ কি.মি.। নদীপথে ৪৮ কি.মি. অতিক্রম করে পুনরায় ফিরে আসতে সময় লাগবে-
- The electric company charge: Tk 0.3 per KWH. Rahim used 2800 KWH in April, 3200KWH in May, and 3600 KWH in June. What was his average costs of electricity in taka for the 3 months?
- At Veridux Corporation, there are 250 employees,of these ,90 are female,and the rest are males.there are total of 40 managers ,and the rest of the employees are associates.If there are a total of 135 male associates,how many female managers are there?
- A And B can run 200m in 22 and 25 seconds respectively. How far is B from the finishing line when A reaches it?
- A sum of money is divided among three persons in the ratio 4:6:9. If the largest share is Tk. 1000 more than the smallest share, what is the total sum
- What is the simplified result of following the steps below in order?(1) add 5y to 2x (2)multiply the sum by 3 (3)subtract X + Y from the product
- The average (arithmetic mean) of four different positive integers is 20. What is the greatestpossible value of any of these integers?
- A sink contains exactly 12 liters of water. If water is drained from the sink until it holds 6 liters of water less than the quantity drained away, then how many liters of water were drained away?
- একটি পরীক্ষায় ৫২% পরীক্ষার্থী ইংরেজিতে এবং ৪২% পরীক্ষার্থী গণিতে ফেল করল। যদি উভয় বিষয়ে ১৭% ফেল করে তবে কয়জন পরীক্ষার্থী উভয় বিষয়ে পাশ করে?
- 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.
- 15 workers can finish a job in 12 days. They work for 4 days, after which 5 additional workers join the team. In how many days will all of them together complete the remaining job?
- একটি গাড়ির সামনের ও পেছনের চাকার পরিধি যথাক্রমে ৩ ও ৪ মিটার। গাড়িটি কত কিলোমিটার পথ অতিক্রম করলে সামনের চাকা পেছনের চাকার চেয়ে ১০০ বার বেশি ঘুরবে?
- ফেনী থেকে নোয়াখালীর দূরত্ব ৪৫ মাইল। করিম ঘণ্টায় ৩ মাইল বেগে হাঁটে এবং রহিম ৪ মাইল বেগে হাঁটে। করিম ফেনী থেকে রওয়ানা হওয়ার ১ ঘণ্টা পর রহিম নোয়াখালী থেকে ফেনী রওয়ানা হয়েছে। রহিম কত মাইল হাঁটার পর করিমের সাথে দেখা হবে?
- The average age of a man and his son is 20. After 10 years, their age will be in the ratio 2:1. What was the age of the man and his son 5 years ago respectively?
- Sum of ages of sunny and Imran is Y years. If sunny is 12 years older than Imran , how many years old will Imran be Y years from now, in terms of Y?