Pls help me with questions 9 and 10
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let no. of 10 rupees notes =x
no. of 50 rs. notes=50-x
now,10x+(50-x)20=800
10x+1000-20x=800
-10x=-200
x=200/10=20
50-x=50-20=30
no. of 50 rs. notes=50-x
now,10x+(50-x)20=800
10x+1000-20x=800
-10x=-200
x=200/10=20
50-x=50-20=30
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