The average number of questions Jack and Kylie solved was 207. The average number of questions Kylie and Kimberly solved was 190. The average number of questions Kimberly and Jack solved was 184. How many questions did each of them solve?
- Kylie
- Jack
- Kimberly
(a)
Number of questions that Jack and Kylie solved
= 207 x 2
= 414
Number of questions that Kylie and Kimberly solved
= 190 x 2
= 380
Number of questions that Kimberly and Jack solved
= 184 x 2
= 368
Number of questions that Kylie solved
= (414 + 380 - 368) ÷ 2
= 426 ÷ 2
= 213
(b)
Number of questions that Jack solved
= 414 - 213
= 201
(c)
Number of questions that Kimberly solved
= 380 - 213
= 167
Answer(s): (a) 213; (b) 201; (c) 167
