**Mixed Review Worksheet-1**

- Find the mean of the following data set.

43, 61, 56, 62, 48

A. 55 B. 54 C. 48 D. 53.5

- Which is the average of the following test scores?

60, 88, 75, 90, 82

A. 78 B. 75 C. 80 D. 79

- Three numbers have an average of 48. Two of the numbers are 42 and 54. Find the third number.

A. 44 B. 50 C. 48 D. 46

- What is the mean of 320, 440, and 512?

A. 432 B. 404 C. 422 D. 424

- Bunty got the following scores on his tests: 82, 98, 90, and 84. To get an "A" grade he has to get an average of 90 for all five tests. What is the minimum score he must get on his fifth test in order to get an average of 90?

A. 90 B. 94 C. 96 D. 98

- Find the median of the following data set.

23, 18, 21, 18, 27, 22, 19

A. 21 B. 18 C. 23 D. 27

- Five numbers have a mean of 70. Fours of the numbers are 68, 60, 80, 64. Find the fifth number.

A. 68 B. 64 C. 78 D. 82

- Vikram's science test scores for the year were 74, 89, 94, 99, and 88. Find the average of his science scores. Round to the nearest whole number.

A. 88 B. 89 C. 87 D. 85

- Find the average for the following data set.

450, 380, 680, 600, 540

A. 530 B. 535 C. 532 D. 615

- See the table below to answer this question. Geeta paid for 2 Vanilla cones with a Rs.10 note. How much change will she receive?

A. Rs.5.70 B. Rs.3.70 C. Rs.4.80 D. Rs.4.70

**Answer Keys**

(1)–B; (2)–D; (3)–C; (4)–D; (5)–C; (6)–A; (7)–C; (8)–B; (9)–A; (10)–D