84, 40, 18, ?
A. 16
B. 12
C. 7
D. 9
সঠিক উত্তরঃ
C.
7
Explanation:

Related Questions (Any University/Year)
- If a, b and c are 3 consecutive integers in that order, which of the following has the lowest value?
- If y% of x is 29. Then x =?
- The price of sugar increases by 32%. A family reduces its consumption so that expenditure of the sugar is up by 10% only. If the total consumption of sugar before the price rise was 10 kg per month, then the consumption of sugar per month is approximately-
- In a certain village, m litres of water are required per household per month. At this rate, if there are n households in the village, how long (in months) will p litres of water last?
- How many balls had C started with?
- -1 থেকে কত বিয়োগ করলে বিয়োগফল শূন্য হবে?
- Rima bought four books that cost Tk. 6.00 each and two books that cost Tk. 3.00 each. What is the average cost of the six books?
- The average (arithmetic mean) of four different positive integers is 20. What is the greatestpossible value of any of these integers?
- If a, b and c are 3 consecutive integers in that order, which of the following has the lowest value?
- During transportation, 5% merchandise was stolen and another 5% was damaged, At what profit (in percentage) should the goods be sold so as to make an overall profit of 20%
- Instructions: DO NOT USE CALCULATOR. Figures are not drawn to scale. If x, y and z are positive integers such that when x is divided by y, the remainder is z and when x is divided by z, the remainder is (y-2), then which of the following must be true?
- Tom and Bill agreed to race across a 50 foot pool and back again. They started together but Tom finished 10-ft ahead of Bill. If their rates were constant and Tom finished the race in 27 seconds, how long did Bill take to finish it?
- Six years from now, Afnan's age will be the square of her age six years ago. What is Afnan's age?
- পাঁচটি বিড়াল পাঁচটি ইঁদুর ধরতে সময় নেয় পাঁচ মিনিট। ৩০টি বিড়াল ৩০ টি ইঁদুর ধরতে কত সময় নেবে?
- Bill can hammer 20 nails in 6 minutes. Jeff can do the same job in only 5 minutes. How long will it take them to finish if Bill hammers the first 5 nails, then Jeff hammers for 3 minutes then Bill finishes the job?
- The number of students on each section of a school is 24. After admitting new students, three new sections were started. Now, the total number of sections is 16 and there are 21 students in each section. How many new students were admitted?
- Each questions is followed by two statements. Decide whether the data in the statements are sufficient to answer the question. Select your answer according to whether: A TV was listed at a price that would have given the store a profit of 20% of the purchase cost. What is the purchase cost of the TV? (1) After reducing the listed price of the TV by 10%, the TV sold for a net profit of Tk. 10,000. (2) The TV was sold for Tk. 50,000.
- The difference of the squares of two consecutive odd numbers is 84. What is the sum of the two numbers?
- If the product of two numbers is 10 and sum of the two numbers is 7, which is the larger of the two numbers?
- A sum of money is divided among 3 persons in the ratio 4:6: 9 .If the largest share is tk 1000 more than the smallest share ,what's ithe total sum
- The sum of three digits of a number is 10, The middle digit is equal to the sum of other two, and the number will be increased by 99 if the first and third digits be interchanged. What is the original number?
- A certain integer n when divided by 5 yields a remainder of 4. Which of these cannot be an integer?
- A box contains 24 red socks and 43 green socks. How many green socks must be removed from the box so that 60% of the socks in the box will be green?
- ডাক্তার রোগীকে প্রতি ২ ঘন্টা পর পর খাওয়ার জন্য ৬টি বড়ি দিলেন। শেষ বড়িটি রোগী কত ঘণ্টা পরে খাবেন?
- প্রশ্নবোধক চিহ্নের স্থানে কোন সংখ্যাটি বসবে?
- The length of each side of square A is increased by 100 percent to make square B. Again the length of each side of square B is increased by 50 percent to make square C. By what percent is the area of square C greater than the sum of the areas of square A and B?
- Each questions is followed by two statements. Decide whether the data in the statements are sufficient to answer the question. Select your answer according to whether: If x and y are integers, is y even? (1) \(6x + 3y\) is even (2) \(3x + 6y\) is even
- A student multiplied a number by 3/5 instead of 5/3 , What is the percentage error in the calculation?
- Lamisa's age is 5 years more than twice Gallb's age. Zihan's age is 13 years less than 10 times Galib's age. If Zihan is 3 times as old as Lamisa, how old is Lamisa?
- একটি কুকুর একটি খরগোশকে ধরার জন্য তাড়া করে। কুকুর যে সময়ে ৪ বার লাফ দেয়, খরগোশ সে সময় ৫ বার লাফ দেয়। কিন্তু খরগোশ ৪ লাফে যতদূর যায় কুকুর ৩ লাফে ততদূর যায়। কুকুর ও খরগোশের গতিবেগের অনুপাত কত?
- দুইটি নল দিয়ে একটি চৌবাচ্চা ৮ মিনিটে পূর্ণ হয়। নল দুইটি খুলে দেয়ার ৪ মিনিট পর ১ম নল বন্ধ করে দেয়ায় চৌবাচ্চাটি পূর্ণ হতে আরও ৬মিনিট লাগলো। প্রত্যেক নল দ্বারা পৃথকভাবে চৌবাচ্চাটি পূর্ণ হতে কত সময় লাগবে?
- ABCD একটি সামন্তরিক। BD এর দৈর্ঘ্য = 2। BCD ত্রিভুজের সকল কোণ সমান। সামন্তরিকটির পরিসীমা কত?
- 3, 9 ও 4 এর চতুর্থ সমানুপাতিক কত?
- Rahman is twice as old as Shermin. In y years Shermin will be 1.5 times older than she is now. What is Shermin's age?
- এক ব্যক্তি তার স্ত্রী চেয়ে ৩ বছরের বড়। তার স্ত্রী বয়স তার ছেলের বয়সের ৪ গুন। ৪ ছর পর ছেলের বয়স হবে ১২ বছর। ঐ ব্যক্তির বর্তমান বয়স কত বছর?
- A 112-meter rope is cut into three pieces with each piece twice as long as the previous one. How long is the longest piece?
- একটি সোনার গহনার ওজন ১৬ গ্রাম। এতে সোনা ও তামার অনুপাত ৩ঃ ১। এতে কি পরিমাণ সোনা মেশালে ৪ঃ ১ হবে?
- A car must complete a 180-km trips in 4 hours. If he averages 50 km an hour for the first three hours of his trip, how fast must he travel in the final hour?
- On a wildlife reserve, the ratio of giraffes to zebras is 37:43. If there are 300 more zebras than giraffes, how many giraffes are on the wildlife preserve?
- ২৫ কেজি চাল যে মূল্যে ক্রয় করা হয় ২০ কেজি চাল সে মূল্যে বিক্রয় করলে শতকরা কত লাভ হয় ?