please solve this question guys
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there are 4 questions
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which one do you want me to solve?
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Answer:
Q3. ten 50 notes
fifteen 100 notes
Q4. fixed charge = 25
additional charge = 3
Step-by-step explanation:
3)
let no. of 50 notes = x
and no of 100 notes = y
x + y = 25 ( total no of notes ) eq 1
50x + 100y = 2000 ( total money ) eq 2
on multiplying eq1 with 50 on both sides you get
50x + 50y = 1250 eq3
eq2 - eq3
you get y = 15
and on substituting y you get X = 10
4)
let fixed charge be x
and additional charge be y
Rs 27 - 7 days => 4 extra days
Rs 21 - 5 days => 2 extra days
x + 4y = 27 .. eq1
x + 2y = 21 .. eq2
eq1 - eq2
you get y = 3
and on substituting y you get x = 15
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