Question
The table shows the heights of Jack, Grace, and Henry. The average height of three children is 142 cm. The digit in the ones place of Jack's height and the digit in the tens place of Henry's height are covered by ink blots.
  1. What is the digit in the ones place of Jack's height?
  2. What is the digit in the tens place of Henry's height?
2 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

The table shows the heights of Jack, Grace, and Henry. The average height of three children is 142 cm. The digit in the ones place of Jack's height and the digit in the tens place of Henry's height are covered by ink blots.
  1. What is the digit in the ones place of Jack's height?
  2. What is the digit in the tens place of Henry's height?