Math, asked by shrawanithakre, 1 year ago

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 SushmitaAhluwalia
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 kirangawle2
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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