Andrew has a part time job selling second hand motorbikes, He gets a basic salary or R500 per month, and earns R600 in commission for each motorbike that he sell. How many motorbikes must Andrew sell to earn a total income of 10000 per monthly
Let's say Andrew sells x motorbikes per month.
Andrew earns R600 in commission for each motorbike that he sells. So, his total commission income is 600*x.
His basic salary is R500.
Thus, his total income per month is 600*x + 500.
We want the total income to be R10000.
So, 600*x + 500 = 10000.
Subtracting 500 from both sides, we have 600*x = 9500.
Dividing both sides by 600, we get x = 9500/600 = 15.83.
Since Andrew cannot sell a fraction of a motorbike, he must sell 16 motorbikes to earn a total income of R10000 per month.