Question

Chris wants to order DVDs over the internet. Each DVD costs Rs. 15.99 and shipping the entire order costs Rs. 9.99. If he can spend no more than Rs. 100, how many DVD's could he buy?

• A. No less than 6 DVDs
• B. No more than 6 DVDs
• C. No more than 5 DVDs
• D. No more than 6 DVDs

Answer 1

The correct option is C

No more than 5 DVDs

Let x be no. of DVDs ordered.

Then $15.99x+9.99\le 100$

$\Rightarrow 15.99x\le 100-9.99$

$\Rightarrow 15.99x\le 90.01$

$\Rightarrow x\le 5.629$

Since x is no. of DVDs, x should be a whole number

Chris can order no more than 5 DVDs.