Q1:W2:PRETEST

Observe the number of rectangles on each figure below. How many rectangles will there be in figure 6?

• 7

• 8

• 10

• 13

Complete the pattern below by counting the number of matches used in each pattern. How many of matches are there in pattern number 6?

• 30

• 31

• 32

• 33

Find the missing terms in the arithmetic sequence: ___, ___, ___, 8, 12, 16.

• 2, 4, 6

• -2, -4, -6

• -4, 0, 4

• 4, 0, -4

A conference hall has 33 rows of seats. The last row contains 80 seats. If each row has two fewer than the row behind, how many seats are there in the first row?

• 16

• 18

• 20

• 2

If three arithmetic means are inserted between -15 and 9, find the first of these arithmetic means.

• 3

• -3

• -6

• -9

Which term of of an arithmetic sequence 5, 9, 13, 17, ..., 401?

• 99^th

• 100^th

• 111^th

• 112^th

Find p so that p + 7, 3p + 9, p + 3, ..., form an arithmetic sequence.

• -2

• 2

• -3

• 3

In the library, the books are arranged in shelves. 12 books in the first row, 18 books in the second row, 24 books in the third row and so on in the same increasing pattern. If the shelves have 6 rows, how many books are there in the shelves?

• 90

• 144

• 162

• 192

The number of seats in the first 14 rows of the center orchestra aisle of the UMAK Mini-Theater in Makati City form an arithmetic sequence as shown. How many seats in total are in the first 14 rows?

• 168

• 336

• 490

• 245

Find the sum of the terms of the given sequence 3, 7, 11, 15, 19, 23, ..., 123, 127.

• 1, 280

• 1, 820

• 2,080

• 3, 080