Question

. Suppose you have a currency, named Won, in three denominations : 1 won, 10 wons and 50 wons.
In how many ways can you pay a bill of 107 wons?

pls answer fast and correct no explanation please

Answer 1

Answer:

Let the number of currency 1 Won, 10 Won and 50 Won be x, y and z respectively.

x+10y+50z=107

Now the possible values of z could be 0, 1 and 2.

For z=0: x+10y=107

for above equation y can range from 0 - 10, taking total 11 values. that means above condition can satisfied by 11 ways.

For z=1: x+10y=57

for above equation y can range from 0 - 5, taking total 6 values. that means above condition can satisfied by 6 ways.

For z=2: x+10y=7

for above equation y can take only 1 value i.e 0. that means there is only 1 way to satisfy above condition.

Total no of ways = 11+6+1=18

Answer 2

$\huge{\tt{\red{}\green{A}\purple{N}\pink{S}\blue{W}\orange{E}\red{R}}}$

Ans = The total number of values is 11+6+1= 18.