math question

Question

The Students' Union needs to order some pens and notebooks. How much does it cost to order 1000 pens and 2000 notebooks?

 

Quantity of the pens 100 250 500 1000 2500 5000
Price per pen (cents) 80c 72c 66c 60c 52c 45c

 

Quantity of the notebooks 100 250 500 1000 2500 5000
Price per notebook (cents) 99c 86c 80c 76c 72c 70c

Answer 1

If we buy 1000 pens they cost $0.60 per pen:  1000(0.6) = $600

 

If we buy 2000 notebooks they cost $0.76 per notebook:

2000(0.76) = $1,520

 

600 + 1520 = $2,120