What least number must be subtracted from 2963 so that the resulting number when divided by 9, 10 and 15, the remainder in each case is 5?

41 78 82 39

78

9, 10, 15 = 90 (LCM)               = 2963 - 5               = 2958               = \(\frac{2958}{90}\) = 78 (remainder)