a sum of 500rs is in the form of denominators of rs 5 and rs 10 if the total number of notes is 90rs find the number of notes of each denomination
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80 , 5rs notes and 10 ,10rs notes
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no of 5rs notes : 80
no of 10rs notes : 10
check:
80×5 =400rs
10×10 = 100rs
400 +100 =500rs
no of 10rs notes : 10
check:
80×5 =400rs
10×10 = 100rs
400 +100 =500rs
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