Question

a purse contains rs 250 in notes of denominations of 10 and 50. If the number of 10 rupees notes is one more than that of 50 rupee notes, find the number of notes of each denomination. Q have in linear equation one variable

Answer 1

Suppose there are x 10 rupee notes, then x-1  be the 50 rupees notes

Then by condition

10x+50(x-1)=250

10x+50x-50=250

60x=250+50

60x=300

x=300/60=5

Therefore there are 5 10 rupee notes and

5-1= 4 50 rupees notes

Answer 2

$hello \: mate \: here \: is \: your \: answer \\ let \: number \: of \: 10rupees \: note = x \\ let \: 50rupees \: =y \\ given \: x - y = 1 \\ 10x + 50y = 250 \\ x + 5y = 25 \\ if \: we \: simplify \: we \: get \: x = 5 \\ y = 4$
Hope it helps