Amir and Hannan working together can finish a work in 3 hours. If they work alone, Hannan takes 3 times as long as Amir. How long does Hannan take to finish the job alone?
A. 6
B. 12
C. 14
D. 16
NSIসহকারী পরিচালকমানসিক দক্ষতা(IQ)গাণিতিক সমস্যাIQ-4 (Topic Practice)NSI - ⚡ অনলাইন প্রশ্নব্যাংক দেখুন 💥
সঠিক উত্তরঃ
B.
12
Explanation:
Related Questions (Any University/Year)
- ৮৮০-এর তিন-চতুর্থাংশের এক-দশমাংশের অর্ধেক কত?
- If a, b and c are 3 consecutive integers in that order, which of the following has the lowest value?
- জুয়েলের বয়স তার পুত্র সুমন এর বয়সের দ্বিগুণ ।১০বছর পূর্বে তাদের বয়সের অনুপাত ছিল ৮:৩ । জুয়েল এর বর্তমান বয়স কত ?
- In a class of 200 students ,40 % are girls. 25% of the boys and 10% of the girls signed up for a tour to Cox's Bazar .What percent of the class signed up for the tour?
- কাফি ও খলিল একটি কাজ যথাক্রমে ১০ দিনে ও ১৫ দিনে করতে পা??ে। তারা একত্রে কাজটি কত দিনে করতে পারবে?
- If the ratio of the radii of two circles is 3 to 2 then the ration of the areas of the two circles.
- ৮৮০ এর তিন চতুর্থাংশের এক দশামাংসের অর্ধেক কত?
- The ration of 1/4 to 3/5 is
- what is the monthly salary of Rahman ? Statements : 1. Rahman's basic salary is Tk. 100 more Rajan's salary who also serves in Rahman's company. 2. Other allowances drawn by Rajan besides his basic salary are Tk. 2,000 per month which is TK. 50 less than Rahan's salary . 3. Rajan's basic salary is TK. 1550 per month.
- 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?
- . The number of students in 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?
- একটি সমকোনী ত্রিভুজের একটি কোন ৩০° হলে অপরটি কত ডিগ্রি ?
- How many flowers are there if all of them are roses except two , all of them are tulips except two and all of them are daisies except two?
- What number should replace the question mark?
- Three workers can do a job in 12 days. Two of the workers work twice as fast as the third. How long would it take one of the faster workers to do the job alone?
- 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?
- A store has five shelves and the average weekly sale of the store is tk. 30,000. Shelf 1 accounted for 1/4 of the store's average weekly sales and stores 2 and 3, each accounted for 2/3 as much as shelf 1. If shelf 4 alone accounted for as much as shelf 1 then, which of the following could have been the average weekly sales of shelf 5 for the store?
- একটি আয়াতাকার ঘরের দৈর্ঘ্য বিস্তারের দ্বিগুণ। এর ক্ষেত্রফল ৫১২ বর্গমিটার হলে পরিসীমা কত মিটার?
- A large tanker can be filled by two by two pipes A and B in 60 minutes and 40 minutes respectively. How many minutes will it take to fill the tanker from empty state if B is used for half the time and A and B fill together for the other half?
- Instructions: DO NOT USE CALCULATOR. Figures are not drawn to scale. Kalam takes 2 days more than what Zakir takes to produce x chairs. They work together for 6 days and produce 24x chairs. How many days will it take Kalam to produce 2x chairs?
- A straight fence is to be constructed from posts 6 inches wide and separated by lengths of chain 5 feet long. If a certain fence begins and ends with a post, which of the following could not be the length of the fence in feet? (12 inches =1 foot)
- একটি দ্রব্য ৩৮০ টাকায় বিক্রয় করায় ২০ টাকা ক্ষতি হলো। ক্ষতির শতকরা হার কত?
- If 12 men can reap 120 acres of land in 36 days, how many acres of land can 54 men reap in 54 days?
- একটি সংখ্যা ৩৩ থেকে যত ছোট, ২১ অপেক্ষা তার দ্বিগুণ বড়। সংখ্যাটি কত?
- Which Number Should come next in this series? 25,24.22.19,15
- If a boy takes as much time in running 10 min, a car takes in covering 25m, the distance covered by the boy's during the time the car covers 1 km is -
- এক ব্যক্তি তাঁর স্ত্রীর চেয়ে ৫ বছরের বড় এবং তাঁর স্ত্রীর বয়স তাদের ছেলের বয়সের ৪ গুণ। ৩ বছর পর ছেলের বয়স ১৪ বছর হলে সেই ব্যক্তির বর্তমান বয়স কত?
- Rezoan started a business investing Tk 50,000. Four month after he started ,Ameer joined him with a capital of Tk 90,000 .If at the end of the year the total profit in the business is tk 22000 .What would be the Ameer's share in it
- A motorist travels x miles in y hours and z minutes. What is his average speed in miles per hour?
- 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?
- A bookstore lists a novel at such a price that after giving a discount of 30% on the listed price (including tax) it earns a profit of 40%. If enlisted price of the novel including tax is Tk. 460, then what is the cost price of the novel?
- . 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?
- 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?
- If \( (x-1)^2 = 400 \) which of the following is the value of X-5?
- ৬ হচ্ছে একটি সংখ্যার ২৪%, তাহলে একই সংখ্যার ৪০ হবে?
- An employee can choose one of two methods of annual payment either an annual salary of Tk. 35,000 with no commission or an annual salary of Tk. 10,000 plus a 20% commission on her annual sales. What must be her total annual sales to get the same annual payment in either method?
- A father is three times as old as his son. In 12 years' time, he will be twice as old as his son. How old is the father now?
- দুটি সংখ্যার পার্থক্য (1F)16। একটি সংখ্যা (62)10 হলে, অপর সংখ্যাটি কত?
- If x+y=4, y+z = 8 and z+x= 6, then 2y-z-0
- At an election inolving two candidates. 68 votes were declared invalid. The winning candidate secured 52% and won by 98 votes. The total number of votes polled was.
