Question

800 sum is in the for of 10 and 20 rupees note total note 50 find the note of 10 and 20

Answer 1

HEY MATE HERE IS YOUR ANSWER

If no of 10 rupees notes be X
and no of 20 rupees notes be Y

then cost of 10 rupee and 20 rupees notes is 10x and 20y respectively

x+y=50--------->(eq1)
10x+20y=800
10 (x+2y) = 80×10
x+2y=80-------->(eq2)

(2)-(1)
x+2y-x-y=30
y=30
sub you in equation 1

x+y=50
x+30=50
x=20

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