The table shows the heights of Michael, Rachel, and Leah. The average height of three children is 165 cm. The digit in the ones place of Michael's height and the digit in the tens place of Leah's height are covered by ink blots.
- What is the digit in the ones place of Michael's height?
- What is the digit in the tens place of Leah's height?
Total height of the three children
= 3 x 165
= 495 cm
Total height of Michael and Rachel
= 495 - 145
= 350
350 - 170 - 105
= 75
= 7 tens 5 ones
(a) Digit in the ones place of Michael's height = 5
(b) Digit in the tens place of Leah's height = 7
Answer(s): (a) 5; (b) 7