The table shows the heights of Mason, Benjamin, and Noah. The average height of three children is 126 cm. The digit in the ones place of Mason's height and the digit in the tens place of Noah's height are covered by ink blots.
- What is the digit in the ones place of Mason's height?
- What is the digit in the tens place of Noah's height?
Total height of the three children
= 3 x 126
= 378 cm
Total height of Mason and Benjamin
= 378 - 111
= 267
267 - 130 - 105
= 32
= 3 tens 2 ones
(a) Digit in the ones place of Mason's height = 2
(b) Digit in the tens place of Noah's height = 3
Answer(s): (a) 2; (b) 3