Question
ram has rs 80 in currency notes on rs 10 and rs 5. if the number of rs 5 currency notes in one more than the number of rs 10 notes how many of each does he have?
Answers
PsyDAG
x = rs10, y = rs5
x + 1 = y
10x + 5y = 80
Substitute x+1 for y in the second equation and solve for x. Insert that value into the first equation to solve for y. Check by putting both values into the second equation.
x + 1 = y
10x + 5y = 80
Substitute x+1 for y in the second equation and solve for x. Insert that value into the first equation to solve for y. Check by putting both values into the second equation.