Pi Day(Game 2)

Riddles

100

If two chairs can be made by two men in two hours, how many chairs can be made by four men in four hours?

8

200

Dave’s age today is three times what it will be three years from now minus three times what his age was three years ago. How old is Dave?

18

300

How many permutations of 3-digit numbers are there made of 3 different digits, chosen from the ten digits 0 to 9 inclusive?

720

400

Old Granny Adams left half her money to her granddaughter and half that amount to her grandson. She left a sixth to her brother, and the remainder, $1,000, to the dogs’ home. How much did she leave altogether?

12000$

500

A small number of cards has been lost from a complete pack. If I deal among four people, three cards remain. If I deal among three people, two remain and if I deal among five people, two cards remain. How many cards are there?

47

Number Series

100

 4, 11, 18, 25, _

32

200

9, 16, 25, 36,  _

49

300

-2, -8, -18, -32, _

-50

400

0, 7, 26, 63, 124, _

215

500

-1, 1, 2, -5, -4, 25, 8, 125, _, _

16, 625

Guess the Graph

100

IMG 1

3x+1

200

IMG 2

2x²-1

300

IMG 3

-x³-1

400

IMG 4

3^x+3

500

IMG 5

e^{(x^2)}

Coding and Decoding

100

In a certain code TAP is written as 20116 and PING is written as 169147, how is TAPING written in that code?

201129147

200

In a certain code GOLD is assigned a value of 38. What is the value assigned to ALPHA in that code?

38

300

In a certain code EULER is written as FWOIW, then what is GAMMA written as?

HCPQF

400

In a certain program DATA*1 has the value 41201, then what is the value of (PI/E)*10?

50

500

In a certain program ‘b’ has the value 2, ‘B’ has the value -3,  and Beta has the value 23. What is the value of Sigma?

10

Mental Calculations

100

126 + 338

464

200

-464 + 219

-245

300

104 * 96

9984 (can be done using (100+4)(100-4) = 100² - 4²)

400

2¹⁰

1024

500

(4096)^1/4

8