Originally Posted by

**hoppingmad** People tend to agree public transport is an effecitive way to travel. Public transport combination passes are marketed and sold:

'pass a' cost $12 a week and includes 5 bus rides 2 ferry rides and 3 tram rides

'pass b' costs $20 a week and includes 10 bus rides 5 ferry rides and 5 tram rides

'pass c' costs $15 a week and includes 8 bus rides 4 ferry rides and 3 tram rides

in one particular week the number of bus rides sold = 966 the number of ferry rides sold = 467 and the number of tram rides sold = 462 would the turnover made from selling passes exceed $2000? validate the response with your knowledge on matrix's.

Let a, b and c denote the sales of the three pass types. Then

Code:

5a+10b+8c=966 //train rides sold
2a+5b+4c=467 //ferry rides sold
3a+5b+3c=462 //tram rides sold

are the equations to be solved.

CB