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Lady_Fox [76]
3 years ago
11

a bag has a total of 120 notes in denominations of rs 2, rs. 5 and rs. 10. the total value of the notes in the bag is rs 760. if

there were twice as many notes rs. 5 , the total value of the notes will be 960. find the number of rs 10 notes in the bag?
Mathematics
1 answer:
Deffense [45]3 years ago
8 0
So there are three variables, rs2 label x, rs5 label y, rs10 label z
Lets write equeations using these variables. 
x+y+z=120  (<span>A bag has a total of 120 notes)
2x+5y+10z=760  (total value)
2x+5*2y+10z=960  (twice as many rs5)

3 variables, 3 independent equations will give solution. There are a fair few ways to solve this. </span>
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