After working for a total of 4 hours at a temporary job, you were told that you had just completed ¼ of the job. How long should it take you to finish the remaining part of the job?
A. 1 hour
B. 16 hour
C. 8 hour
D. 12 hour
Explanation: ধরা যাক, সম্পূর্ণ কাজ = ১ অংশ।\nপ্রশ্নানুযায়ী, ৪ ঘণ্টায় সম্পন্ন হয় = ১/৪ অংশ কাজ।\nসুতরাং, ১ অংশ কাজ সম্পন্ন করতে সময় লাগবে = \(4 \div \frac{1}{4} = 4 \times 4 = 16\) ঘণ্টা।\nবাকি কাজ = \(1 - \frac{1}{4} = \frac{3}{4}\) অংশ।\nবাকি কাজ (৩/৪ অংশ) সম্পন্ন করতে সময় লাগবে = \(\frac{16 \times 3}{4} = 4 \times 3 = 12\) ঘণ্টা।\nসুতরাং, বাকি কাজ শেষ করতে ১২ ঘণ্টা সময় লাগবে।
Related Questions (Any University/Year)
- ♠️n denotes the number obtained when n is rounded to the nearest 10th. For example ♠️4.31 = 4.3 ♠️0.089 - ♠️1.135 =
- 6 pints of a 20 percent solution of alcohol in water are mixed with 4 pints of a 10 percent alcohol in water solution. The percentage alcohol in the new solution is
- 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?
- A train left Dhaka for Chittagong at 62 km per hour and at the same time another train left Chittagong for Dhaka at 48 km per hour on the same route. How far apart were the two trains one hour before they met?
- The number's three times added with its twice equal 90. What is the number?
- Last year Mrs. Shahana received TK. 160 in dividends on her shares in company X stock if she had 15 more shares of the stock last year, she would have received TK. 25 more in total dividends. How many shares of the stock did she have last year?
- 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?
- 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?
- একটি পুকুরে কচুরিপানা প্রতিদিন দ্বিগুণ হারে বৃদ্ধি পায়। যদি পুকুরটি কচুরিপানা দিয়ে ভরে যেতে ২৮ দিন লাগে তবে অর্ধেক পুকুরটি ভরে যেতে কত দিন লাগবে?
- Jo's collection contains US, Indian and British stamps. If the ratio of US to Indian stamps is 5 to 2 and the ratio of Indian to British stamps is 5 to 1,what is the ratio of US to British stamps?
- The price of sugar has increased by 32%. A family reduces its consumption so that the expenditure of sugar is up by 10% only. If the total consumption of sugar before the price rise was 10 kg per month, what is the consumption of sugar per month ( in kg )?
- একটি ড্রয়ারে ২০টি মোজা আছে। ৬০% মোজা হলো লাল আর বাকিগুলো নীল। না দেখে ন্যূনতম কতগুলো মোজা ড্রয়ার থেকে তুললে দুটো নীল মোজা অবশ্যই উঠবে?
- 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?
- 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?
- একটি মানচিত্রে ৩/৮ ইঞ্চি দূরত্ব ৫০ মাইলের সমান। দুটি শহরের মধ্যবর্তী দূরত্ব ৩.৭৫ ইঞ্চি। শহর দুটির প্রকৃত দূরত্ব কত?
- Asif is now 14 years older than saif. If in 10 years Asif will be twice as old as Saif. How old will Asif be in 7 years?
- একটি দ্রব্য ক্রয়মূল্যের সমান লাত করায় বিক্রয়মূল্য পাওয়া গেল ৫৬০ টাকা। দ্রব্যটির ক্রয়মূল্য কত?
- The difference of the squares of two consecutive odd numbers is 84. What is the sum of the two numbers?
- Nakir and Sabir is twin brother. Their combined age now is equal to their father's age. After 10 years
- ০.২২×০.৭০= ?