Question 9
A, B, and C are prime numbers and $A\lt B\lt C$ and A is the smallest prime number. What is the value of C in $3A+4B+5C=148$? Hint: Try small prime numbers for A and B, then solve for C accordingly.
Original choices: A. 29; B. 23; C. 19; D. 17.
Editorial note: Explain the source difficulty; no automatic answer is assigned.
Original choices: A. 29; B. 23; C. 19; D. 17.
Editorial note: Explain the source difficulty; no automatic answer is assigned.