Question
Five numbers were written on the whiteboard as shown:
  1. Write down the 3 numbers that will give an average of 45. Give your answers in ascending order. (Eg 1, 2, 3)
  2. After John wrote 2-digit number on the same whiteboard, the new average of the six numbers became a whole number and a multiple of 3. What was the smallest possible 2-digit number written by John?
3 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

Five numbers were written on the whiteboard as shown:
  1. Write down the 3 numbers that will give an average of 45. Give your answers in ascending order. (Eg 1, 2, 3)
  2. After John wrote 2-digit number on the same whiteboard, the new average of the six numbers became a whole number and a multiple of 3. What was the smallest possible 2-digit number written by John?