Aditi, Amaaya, Sanam, Niara and Shreya entered a contest to guess how many coins there were in a piggy bank.
Aditi guessed 30, Amaya guessed 28, Sanam guessed 29, Niara guessed 25 and Shreya guessed 26.
Two were off the mark by 1, one was wrong by 4 and one by 3.
But one was correct.
How many coins were there in the piggy bank?
