The electric company charges Tk. 0.30 per kilowatt-hour (KWH). Rahim used 2800 KWH in April, 3200 KWH in May, and 3600 in June. What was his average cost of electricity for the 3 months?

A Tk. 72
B Tk. 96
C Tk. 48
D Tk. 144

Correct Answer: Tk. 72

Total Electricity cost for the three months= 2800*0.30+3200*0.30+3600*0.30=2880tkAverage cost of electricity for the three months=2880/3=960tkso the answer is none of these from the options
Bissoy MCQ
#গণিত #গড় (Average) #Oil & Gas Co. Ltd #Titas Gas Co.Ltd - Deputy Asst. Engineer - 18.02.2011

Related Questions

The electric company charges 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 cost of electricity for the 3 months?
A Tk. 72
B Tk. 96
C Tk. 48
D Tk. 144
The electric company charges Tk. 0.30 per kilowatt -hour (KWH). Rahim used 28000 KWH in April , 32 00 KWH in May, and 36ooo KWH in June . What was his average cost least one of each colour?
A Tk. 72
B TK. 96
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Kalam, Salam and Rahim took lunch together. Meal of Rahim costs 50% more than that of Salam and the meal of Kalam costs 5/6th of that of Rahim. Salam paid Tk 100 for his meal. What was the total bill (in Tk) paid by the three persons?
A 283.33
B 300
C 350
D 375
The sum of Rahim's age and his son's age is 55 years. 5 years ago Rahim's son was 29 years younger than Rahim. What is the son's present age ?
A 5
B 8
C 13
D 15
Karim has 40% more stamps than Rahim, if he gives 45 of his stamps to Rahim, then Rahim will have 10% more stamps than Karim. How many stamps did karim begin with?
A 175
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Rahim and Karim donated Tk. 100. each in charity . Karim gives each tk. 1 more than Rahim and Rahim distributes money to 5 more people than Karim . How many people are there in this charity ?
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Rahim is now 10 years younger than Karim. If in 5 years Karim becomes twice as old as Rahim, how old will Rahim be in 3 years?
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Rahim has three times as much money as Karim has. If Rahim gives Karim TK.50 then Karim will have three times as much money as Rahim will have. How much money do they have together ?
A 75
B 100
C 120
D 130
Rahim is now 14 years older than Karim . If in 10 years Rahim will be twice as old as Karim, how old will Rahim be in 5 years?
A 9
B 19
C 21
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