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WorksheetsArithmetic Series
Total questions: 10
Worksheet time: 29mins
2 + (-2) + (-6) + (-10)..., S10
a1=22
d=-8
n=21
Given the following: a1=−3, d=2, Sn=21 , how many terms do the arithmetic sequence have?
11
9
7
5
A theater has 32 rows of seats. If there are 26 seats in the 1st row, 30 in the 2nd, 34 in the 3rd, and so on, how many seats are there in all? Assume the pattern continues.
2,791 seats
2,803 seats
2,816 seats
2.829 seats
A grocer is creating a display of cans. There are 40 cans on the 1st (bottom) row, 38 cans on the 2nd row, 36 cans on the 3rd row, and so on. How many cans will be on the 15th row?
32 cans
10 cans
12 cans
68 cans
Determine the number of terms in the arithmetic sequence given the following: a1=19, an=96, Sn=690 .
9
10
11
12
Find the sum of first 20 even numbers.
400
410
420
430
A construction company will be penalized each day of delay in construction for bridge. The penalty will be $4000 for the first day and will increase by $10000 for each following day. How much total money in fines will they pay in 15 days?
(a)
A gardener plans to construct a trapezoidal shaped structure in his garden. The longer side of trapezoid needs to start with a row of 97 bricks. Each row must be decreased by 2 bricks on each end and the construction should stop at 25th row. How many bricks does he need to buy ?
(a)
