AlgebraHardMost pens after buying notebooks
Algebra practice question
Ravi buys 8 pencils at $2 each and then as many pens as he can at $3 each, spending at most $50 in total. How many pens can he buy?
Answer: 11
16 + 3p ≤ 50 gives p ≤ 11.33, so 11.
Common wrong answers
- If you answered 10
- 10 stops one short.
- If you answered 12
- 12 would cost $52.
- If you answered 16
- 16 divides 50 by 3, ignoring the pencils.
More Algebra questions
- Hard
For how many integer values of x is −2 < (x − 5)/3 ≤ 1 true? - Hard
The system 2x + 3y = 6 and 4x + 6y = k has infinitely many solutions. What is the value of k? - Hard
Which of the following is the complete solution set to |x − 4| < 6? - Hard
A student has $40 to spend on notebooks costing $4 each and pens costing $2 each, and wants at least 12 items … - Hard
What is the least whole number of minutes of international calling in a month for which the total monthly cost… - Hard
How many liters of the 30% acid solution did the technician use?
Not affiliated with the College Board. SAT is a trademark of the College Board.