The table shows the heights of Chloe, Jack, and Sophia. The average height of three children is 143 cm. The digit in the ones place of Chloe's height and the digit in the tens place of Sophia's height are covered by ink blots.
- What is the digit in the ones place of Chloe's height?
- What is the digit in the tens place of Sophia's height?
Total height of the three children
= 3 x 143
= 429 cm
Total height of Chloe and Jack
= 429 - 142
= 287
287 - 130 - 101
= 56
= 5 tens 6 ones
(a) Digit in the ones place of Chloe's height = 6
(b) Digit in the tens place of Sophia's height = 5
Answer(s): (a) 6; (b) 5