The electric company charge: Tk. 0.30 per kilowatt hour (KWH). Rahim used 2800 KWH in April, 3200 KWH in May, and 3600 KWH in June. What was his average costs of electricity for the 3 months?
A. Tk.72
B. Tk.96
C. Tk.48
D. Tk.144
E. none of these
সঠিক উত্তরঃ
E.
none of these
Explanation:

Related Questions (Any University/Year)
- If y/x =1/5 and 2x+y=33, then what is the value of x?
- In takes one machine 4 hours to complete a production order and another machine 3 hours to complete the same order. How many hours would it take when both machines complete the order simultaneowsly at their respective rates?
- 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 Billal can receive?
- In Motor city, 90% of the population own cars, 15% own motorcycles, and everybody owns one or the other or both. What is the percentage of motorcycle owners who own car?
- Machine A produces bolts at a uniform rate of 120 every 40 seconds, and Machine B produces bolts at a uniform rate of 100 every 20 seconds. If the two machines run simultaneously, how many seconds will it take for them to produce total of 200 bolts?
- A river boat leaves Silver Town and travels upstream to Gold Town at an average speed of 6 kilometers per hour. It returns by the same route at an average speed of 9 kilometers per hour. What is the average speed for the round-trip in kilometers per hour?
- 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 x # 0, then (x+7)/7x-1/x=?
- The ratio of boys and girls in a school is 9:5.If the total number of students in the school is 1050.Then number of boys is
- In a model high school, Physics course is divided into two sections. In section A, average score in the final exam was 92, while in section B, the average score was 84. If the average score of all 40 students in the course was 89, how many students are in Section A?
- A painter used one-fourth of her paint on one room and one-third of her paint on a second room. If she had 10 gallons of paint left after painting the second room, how many gallons did she have when she began?
- 20% of 50 = 50% of?
- The sale of TV increased by 30% when the price was reduced by 10%. What will be the percentage change in revenue?
- জুয়েলের বয়স তার পুত্র সুমন এর বয়সের দ্বিগুণ ।১০বছর পূর্বে তাদের বয়সের অনুপাত ছিল ৮:৩ । জুয়েল এর বর্তমান বয়স কত ?
- Alam starts working on a job and works on work. Then babu joins Alam and together they complete the est of the work in 12 days . How long (in days) will it take Babu to complete the job if he works alone ?
- 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 trader normally makes a profit of 40 % on items he sells . If he reduces the price by 10% his sales increased by 40% . Let x be the total profit when he doesn't reduce the price and y the total profit when he reduces the price what is the ratio of y to x ?
- The population of City X is 40% of the population of city Y. The population of city X is what percent of city X and city Y together?
- 8 টি বানর 8 মিনিটে 8 টি কলা খায় , 3টি বানরের 3 টি কলা খেতে কত মিনিট লাগবে ?
- If X4=81 and Y2= 49, then maximum possible value for Y-X is
- স্কুলের পিটিতে নবম শ্রেণির 45 জন ছাত্রের একটি লাইনে শুরু থেকে সপ্তম স্থানে দাঁড়িয়ে আছে অনিক এবং পিছন থেকে সপ্তম স্থানে দাড়িয়ে আছে মোকসেদ। অনিক এবং মোকসেদের মাঝে কতজন ছাত্র দাঁড়িয়ে আছে?
- The average age of boys in the class is twice the number of girls in the class. If the ratio of boys and girls in the class of 36 be 5:1, what is the total of the ages of the boys?
- Mr. Karim traveled from A to B at a speed of 3 km/hr and returned from B to A at a speed of 5 km/hr. the round trip required 8 hours what was the distance between A and B in km?
- In a store, the ratio of red socks to green socks is 3:2. The socks are made of either cotton or wool. If 60% of the red socks are made of cotton and 80% of the green aocks are made of wool, what percentages of socks are made of cotton?
- In the first 10 overs of a cricket game,the run rate was only 3.2.what should be the run rate in the reamaining 40 overs to reach the target of 282 runs?
- A bus uses one gallon of petrol to travel 15 km. After a tune-up, the bus travels 15% farther on one gallon. How many gallons of petrol will it take for the bus to travel 150 km after a tune-up?
- 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?
- 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?
- যদি ৪২.৪২=K(১৪+m/৫০), যেখানে k এবং m ধনাত্মক পূর্ণসংখ্যা এবং m
- If 12 men can build a wall 180 m long in 54 days ,how many days it will take to build a similar wall 160 m long ,if 16 men working on it
- Alam can do a job in 3 hours. Bipu can do the same work in 20% lesser time but he charges 30% per hour more than Alam does. Alam works for 1 hour and the rest is completed by Bipu. If Alam receives 100 TK , how much did Bipu receive?
- A train covers the distance y miles between two cities at a speed of x mph, arriving 2 hours late. What speed would permit the train to arrive on schedule?
- 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?
- Rachel, David, and Kristen decide to pool their money to buy à video game system. David contributes 4 dollars more than twice what Kristen does, and Kristen contributes 3 dollars less than Rachel does, If Rachel contributes r dollars, then, in terms of r, how much does David contribute?
- 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)
- Which of the following is equal to 85 percent of 160?
- Point B is on the line segment AC. Which of the following is always true?
- An investor has a total capital of TA. 13,00,000 He invested a part of it in 3 percent annual interest and the reminder at 4 percent annual interest rate. If his annual interest amount was Tk. 44.00 how much did he invest in each?
- A can do 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:
- In a 500m race, the ratio of speeds of two contestants A and B is 3: 4. A has a start of 140m. Then A wins by-