Hundred rupee note was changed into ten and twenty rupee notes. There were eight notes in all.How many ten and twenty rupee notes were there?
Answers
Answered by
27
RS.10 note= 6
RS.20 note=2
solution: RS.10x6=60
RS.20x2=40
Total=100 (8 notes)
6 notes of RS.10 and
2 notes of RS.20
RS.20 note=2
solution: RS.10x6=60
RS.20x2=40
Total=100 (8 notes)
6 notes of RS.10 and
2 notes of RS.20
Answered by
5
Answer:
Number of 10 rupee notes = 6
Number of 20 rupee notes = 2
Step-by-step explanation:
Total number of notes = 8
Number of 10 rupee notes = x
Number of 20 rupee notes = y
we have
10x+20y = 100 .........(1)
x+y = 8 ......(2)
(2)*10
10x+10y = 80 .....(3)
(1)- (3)
10y = 20
y = 20/10 = 2
put y = 2 in (2)
x+2 = 8
x = 8-2 = 6
Number of 10 rupee notes = 6
Number of 20 rupee notes = 2
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