SOLUTION: A lady went to abank with rupees 1000 . She asked the cashier to give her rupees 10 and 50 currency notes in return she got 40 currency notes in all . Find the number of each
Algebra ->
Finance
-> SOLUTION: A lady went to abank with rupees 1000 . She asked the cashier to give her rupees 10 and 50 currency notes in return she got 40 currency notes in all . Find the number of each
Log On
Question 1096344: A lady went to abank with rupees 1000 . She asked the cashier to give her rupees 10 and 50 currency notes in return she got 40 currency notes in all . Find the number of each kind of currency notes please help me to slove this problem i have eaxam today Answer by ikleyn(52787) (Show Source):
Let T be the number of 10-rs notes.
Then the number of 50-rs notes is (40-T).
The money equation is
10*T + (40-T)*50 = 1000.
Simplify and solve for T:
10T + 2000 - 50T = 1000 ====> -40T = 1000-2000 = -1000 ====> T = {{(-1000}/(-40)}}} = 25.
Answer. 25 10-rs notes and 40-25 = 15 50-rs notes.
Check. 25*10 + 15*50 = 250 + 750 = 1000. ! Correct !.
