স্রোতের প্রতিকূলে যেতে যে সময় লাগে, অনুকূলে যেতে তার অর্ধেক সময় লাগে। যাতায়াতে যদি ১২ ঘন্টা সময় লাগে, তাহলে স্রোতের অনুকূলে যেতে কত ঘন্টা সময় লাগবে?
A. ৬
B. ৪
C. ৭
D. ৪
সঠিক উত্তরঃ
D.
৪
Explanation:
Related Questions (Any University/Year)
- ৭২৯ লিটারের মিশ্রণে দুধ এবং মধু ৭ঃ২ অনুপাতে থাকে । এই অনুপাতটি ৭ঃ৩ এ পরিবর্তন করার জন্য এতে কী পরিমাণ মধু মেশাতে হবে?
- কঃখ =৩ঃ৫, খঃগ =৪ঃ৭, হলে, কঃগ = কত?
- Monti always jogs to school at a speed of 6 kilometers per hour, and walks home along the same route at a speed of 3 kilometers per hour. If he spends exactly one hour total traveling both ways, how many kilometers is his school from his home?
- Rabib has x more marbles than Rafi has. Together they have y marbles.Which of the following represents the number of marbles that Rafi has?
- An error 2% in excess is made white measuring the side of a square. The percentage of error in the calculated area of the square is:
- ফেরি পারাপারে চালকসহ একটি গাড়ি পার করার খরচ ৬ ডলার। একজন যাত্রির জন্য অতিরিক্ত ভাড়া ৫০ সেন্ট। যদি একটি গাড়ি পার করতে ৭.৫ ডলার খরচ হয়ে থাকে তবে গাড়িতে মোট কতজন লোক ছিল?
- A merchant was selling an item at a certain price, then marked it down 20% for a spring sale. During the summer, he marked the item down another 20% from its spring price. If the item is sold at the summer price, then what percent of the original price did it sell for?
- . If the volume of a cube is x cubic feet and the total surface area of the cube is x square feet, then what is the total length, in feet, of all the cube's edges?
- অমিত ৪০০ কেজি ধান পেয়েছে, প্রতি কেজি ধানে ৭০০ গ্রাম চাল হলে,সে কি পরিমাণ চাল পেল?
- How many balls had A given to C?
- Three partners A, B, C invest Tk.26000, Tk.34,000 and Tk.10000 respectively in a business. Out of a profit of Tk. 3500, B's share is
- 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?
- Sum of present ages of father & son is 70. 7 yrs ago, ratio was 5:2. Ratio after 5 yrs?
- 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?
- Which of the following is true?
- 9 numbers are written in ascending order, middle number is average of that nine numbers. Average of five larger numbers is 68 and also average of five smaller numbers is 44. What is the sum of all nine numbers?
- If it takes 5 minutes to boil an egg, how much time it will take to boil 10 eggs?
- It takes 24 hours for 10 men to make 15 Christmas cakes. How many cakes can be made if 8 men work for 36 hours?
- In Township K each property is taxed at 8 percent of its assessed value. If the assessed value of a property In Township K is increased from $20,000 to $24,000, by how much will the property tax increase?
- A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is:
- ১ হতে ২০ পর্যন্ত বিজোড় সংখ্যা গুলোর গড় কত ?
- In a certain class, 40% of the students are girls, and 20% of the girls wear glasses. What percent of the children in the class are girls who wear glasses?
- A factory that employs 1000 assembly in workers pays each of these workers at a rate of Tk. 5 per hour for the first 40 hours worked during a week and 1.5 times that rate for the hours worked in excess of 40 hours. What is the total amount paid to the workers in a week in which 30% of the workers worked 20 hours, 50% worked 40 hours and the rest of the workers worked 50 hours?
- For a Wall of a given material and of a fixed surface area, the rate of heat loss by condition through the wall is inversely proportional to the thickness (T) of the wall, and directly proportional to the temperature difference (d) across the wall. The rate of heat loss could be given by which of the following expressions?
- The electric company charge: Tk 0.3 per KWH. Rahim used 2800 KWH in April, 3200 KWH in May, and 3600 KWH in June. What was his average costs of electricity in taka for the 3 months?
- The ratio of labor cost and materials cost for making a radio is 2:7. If the cost price is 90% of the selling price which is Tk. X, what is the labor cost per radio?
- The ratio of r to s is 3 to 4. The ratio of s to t is 2 to 9. What is the ratio of r to t ?
- এক মণ ধানে চাল ও তুষের অনুপাত ১৪ঃ৬ হলে, এতে শতকরা কি পরিমান চাল আছে?
- জুয়েলের বয়স তার পুত্র সুমন এর বয়সের দ্বিগুণ ।১০বছর পূর্বে তাদের বয়সের অনুপাত ছিল ৮:৩ । জুয়েল এর বর্তমান বয়স কত ?
- The greatest possible value of C is how much greater than the smallest possible value of D?
- The average (arithmetic mean) of four different positive integers is 20. What is the greatestpossible value of any of these integers?
- Jamal is now 7 times as old as Jashim. If 10 years from now, he will be 3 times as old as Jashim, how old is Jamal now?
- A person spends 20 percent of his monthly salary for his son's education. In the coming month, he is expected to get an increment of TA. 170 and he plans to spend half of that increment also for his son's education would be TA. 645 . what is the present salary of that person?
- The ratio of labor cost and materials cost for making a radio is 2:7. If the cost price is 90% of the selling price which is Tk. X, what is the labor cost per radio?
- Which of the following has the highest value?
- The minimum time Mr. and Mrs. Ahmed require to reach the market from their house by walking is 25 minutes and 20 minutes prospectively. If Mr. and Mrs . Ahmed decided to go to the market together by walking, what is the minimum time they will require to reach the market?
- In the trapezoid, <CAB= DBA =60° and AC= DB = 10 cm. Find the area of the trapezoid.
- একটি সংখ্যা ৩৩ থেকে যত ছোট, ২১ অপেক্ষা তার দ্বিগুণ বড়। সংখ্যাটি কত?
- Last year Jackie saved 5% of her annual salary. This year, she made 10% more money and saved 8%. The amount saved this year was what percent of the amount saved last year?
- একটি ধাতব ঘন(cubical) বস্তুর ওজন ৮ কেজি।একই ধাতুর তৈরী আরেকটি ঘন বস্তু যার প্রতিটি বাহু দ্বিগুণ হলে বস্তুটির ওজন কত কেজ???
