there are in all 14 notes of rupees 50 and 20 if the total amount is rupees 460 than which of the notes are more and by how much
Answers
Answered by
4
20 rupees notes are two more than 50 rupees notes.
- Let
x = number of 50 rupees notes
y = number of 20 rupees notes
- Given,
Total notes = 14
x + y = 14
y = 14 - x ---------------(1)
Total amount = 460
50x + 20y = 460
50x + 20(14 - x) = 460
50x + 280 - 20x = 460
30x = 460 - 280
30x = 180
x = 6
- Substituting x in (1), we get
y = 14 - 6
y = 8
- Number of 50 rupees notes are 6 and that of 20 are 8.
∴ 20 rupees notes are more in number by 2 notes.
Answered by
2
Answer:
∴ 20 rupees notes are more in number by 2 notes.
Step-by-step explanation:
20 rupees notes are two more than 50 rupees notes.
Let
x = number of 50 rupees notes
y = number of 20 rupees notes
Given,
Total notes = 14
x + y = 14
y = 14 - x ---------------(1)
Total amount = 460
50x + 20y = 460
50x + 20(14 - x) = 460
50x + 280 - 20x = 460
30x = 460 - 280
30x = 180
x = 6
Substituting x in (1), we get
y = 14 - 6
y = 8
Number of 50 rupees notes are 6 and that of 20 are 8.
∴ 20 rupees notes are more in number by 2 notes.
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