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Q.

A sports club charges ₹x as a registration fee and there are variable charges for playing any particular sport. Ruchi joined the club to play basketball for a month and paid ₹200. Her friend Sakshi joined the club to play table tennis for a month at ₹150. It is given that the monthly charges for playing basketball is k times the charges of tennis, which is represented by variable y. Which of the following linear equations in terms of x and y represent the given situation? 

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a

x − ky = 200,  x − y = 350 

b

x − y = 200,  x − ky  = 50 

c

x + ky = 200,  x + y = 150 

d

x + y = 300,  x + ky = 150 

answer is B.

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Detailed Solution

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Charge of playing tennis = y and charge of playing basketball = ky 

Sakshi joined the club to play table tennis for a month at ₹150. 

∴ x + y = 150 

Ruchi joined the club to play basketball for a month and paid ₹200. 

∴ x + ky = 200

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