Let the number of five-rupee coins be x. Then the number of two-rupee coins is 3x. Their total value is 88 rupees. Solving the equation gives x equal to 8. Therefore, Ruby has 24 two-rupee coins and 8 five-rupee coins.
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Kriti
Asked: In: Class 9 Maths
Let the integers be 2x and 5x because their ratio is 2:5. Their difference is 63. Therefore, 5x minus 2x equals 63. Solving gives x equal to 21. Hence, the integers are 42 and 105.
Kriti
Asked: In: Class 9 Maths
Let the smaller number be x. Then the larger number is x plus 10. Their sum is 64. Solving the equation gives x equal to 27. Therefore, the two numbers are 27 and 37.
Kriti
Asked: In: Class 9 Maths
If m represents the number of matches played, then the total amount paid is 200 plus 50m. The amount increases by 50 rupees for every additional match played by the member.