Subject
Quantitative Aptitude
Topic
Miscellaneous
If the cost of a long-distance phone call is C taka for the first minute and (2/3)C taka for each additional three minutes, what is the cost, in taka, of a 10 minute call of this type?
If the cost of a long-distance phone call is C taka for the first minute and (2/3)C taka for each additional three minutes, what is the cost, in taka, of a 10 minute call of this type?
ক)
(5C/3)খ)
6Cগ)
3Cঘ)
7CExplanation
first minute cost =c then, every 3 minute cost = C X (2/3) = (2C/3) ∴ total cost = 10 minute = (2C/3) + (2C/3) + (2C/3) + C = (6C/3) + C = 9C/3 = 3CRelated questions
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