a nggy tank contained 640 in the notes of lenomention of 10 and 20
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the answer is 640 by 2 is equal to 320
mysticd:
plz ,verify it is wrong
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Let the number of 10Rs notes be x
And the number of 20Rs notes be y,
Then ;
The linear equation formed will be
10x+20y = 640
x+2y = 64
_____________
And the number of 20Rs notes be y,
Then ;
The linear equation formed will be
10x+20y = 640
x+2y = 64
_____________
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