17. Padma’s teacher asked her to subtract 3 from a certain number and then divide the result by 9. Instead, Padma subtracted 9 and divided the result by 3, getting an answer of 43. What would her answer have been had she worked the problem as her teacher asked?

Answer and Explanation

Your Answer is

Correct Answer is A

Explanation

Set the certain number in the question stem as x, (x-9)/3=43, x=138; (x-3)/9=135/9=15