Mahfuz has a total of Tk. 480 in the denominations of one Taka, five Taka and Ten taka nones. The numbers of different notes are equal. what is the total number of notes?

A 45
B 75
C 90
D none of these

Correct Answer: 90

ধরি, 1 টাকার নোটের সংখ্যা x <math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>&#x2234;</mo></math> (1 <math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>&#xD7;</mo></math> x) + (5 x) + (10 x) = 480 <math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>&#x21D2;</mo></math>x + 5x + 10x = 480 <math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>&#x21D2;</mo></math> x = <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfrac><mn>480</mn><mn>16</mn></mfrac></math> <math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>&#x2234;</mo></math> x = 30 <math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>&#x2234;</mo></math> মোট নোটের সংখ্যা (3 <math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>&#xD7;</mo></math> 30) টি = 90 টি।
Bissoy MCQ
#গণিত #Dutch-Bangla Bank Ltd #Dutch-Bangla Bank Ltd - Probationary Officer - 14.08.2015

Related Questions

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