MathematicalTreasure Hunt

MathematicalTreasure Hunt

MathematicalTreasure Hunt

MathematicalTreasure Hunt

Find the sum to infinity of

162, 54, 18, 6, 2, …

243

145

Find the sum of the first 10 terms of

1, 4, 7, 10, 13, …

The second term of a geometric

progression is 10 and the fifth term is

1250.

What is the first term?

2

96

An arithmetic progression has first term 7 and common

difference -2

What is the 15th

term?

MathematicalTreasure Hunt

MathematicalTreasure Hunt

MathematicalTreasure Hunt

MathematicalTreasure Hunt

Find the number of terms in the arithmetic series

81 + 76 + 71 + … - 24

407127

Find the sum of the first seven terms of…

1, 2, 4, 8, …

Find the sum of the integers from 8 to 29 inclusive.

Evaluate…

∑7

11

(−1)n

-21 22

MathematicalTreasure Hunt

MathematicalTreasure Hunt

MathematicalTreasure Hunt

MathematicalTreasure Hunt

What is the common ratio of the series…

2 – 4 + 8 – 16 + …

-2

42.5

-1

A geometric series has third term 8 and

fifth term 128.

Find the sum of the first four terms.

3

Evaluate…

∑5

10

2n+1

Evaluate…

∑1

∞

(0.75)n

117.6

11.66.8

5.8

-2

42.5

-1

407127

243

-21

22

3

96

145

2