MATHEMATICS-SOME INTERESTING RESULT
2178 x 4 = 8712
1089 x 9 = 9801
(20+25)2 = 2025
(30+25)2 = 3025
(98+01)2 = 9801
(88+209)2 = 88209
(494+209)2 = 494209
68 + 89 + 96 = 253
86 + 98 + 69 = 253
753 + 849 = 1602
847 + 359 = 1206
623 + 475 = 1098
789 + 246 = 1035
364 + 725 = 1089
13/4 + 13/9 = 169/36
13/4 x 13/9 = 169/36
3/5 - 3/8 = 9/40
3/5 x 3/8 = 9/40
169/30 + 13/15 = 13/2
169/30 ÷ 13/15 = 13/2
121/28 – 11/7 = 11/4
121/28 ÷ 11/7 = 11/4
2 + 2 = 4
2 x 2 = 4
1 + 2 + 3 = 6
1 x 2 x 3 = 6
MATHEMATICS QUIZ (01-30)
QUESTIONS 1. Fear of Numbers is called?
2. Where did the magic square originate?
3. Who built the first electronic calculating machine?
4. Who is called the mathematician’s mathematician?
5. How many thousands are there in one crore ?
6. Who coined the word ‘Million’ ?
7. “Mathematics, rightly understood possesses not only truth, but supreme beauty”. Who said it?
8. Who is called the father of Geometry?
9. Who invented logarithms?
10. If a + b = 0, then the largest value of a x b is?
11. Who is known as the Prince of Indian Mathematics?
12. A clock takes 6 seconds to strike 4 O’ clock. Then how much time it will take to strike 8 O’ clock?
13. “Let no one ignorant of geometry enter here”. Whose words are these?
14. Can you write 31 using only digit 3 five times?
15. Which mathematician spent more than a decade of his last days as a blind man?
16. The sum of some continuous counting numbers are equal to 1000. What are they?
17. Which curve is known as the “Helen of Geometry”?
18. The number 1729 is popularly known as ?
19. Who is the first Indian to become the president of International Astronomical Union?
20. Which Indian mathematician first framed the rules of operation with zero?
21. “Number rules the universe”. Who said it?
22. “The essence of mathematics resides in its freedom”. Who said it?
23. “Five out of four people have trouble with fractions”. Who said it?
24. “The mathematician is like a Frenchman: you tell him something, he translates it into his own language, and at once it becomes something altogether different”. Who said it?
25. “God exists since mathematics is consistent, and the Devil exists since we cannot prove it”. Who said it?
26. Who used to always remark, “I was x years old in the year x2 ”, whenever anybody asked either his age or his year of birth?
27. “Mathematics is all well and good, but Nature keeps dragging us around by the nose”. Who said it?
28. “Beauty is the first test; there is no permanent place in the world for ugly mathematics”. Who said it?
29. “A great mathematician should know above all things how to calculate his happiness”. Who said it?
30. “As far as the laws of mathematics refer to reality, they are not certain; and as far as they are certain, they do not refer to reality”. Who said it?
ANSWERS
1. Numerophobia
2. China
3. John V. Atanasoff
4. Arthur Cayley
5. 10000
6. Marco Polo
7. Bertrand Russell
8. Euclid
9. John Napier
10. Zero (when a=0 and b=0) (in all other cases, either a or b will be negative and hence the product will also become negative)
11. Srinivasa Ramanujan (1887-1920)
12. 14 seconds
13. Plato
14. 33+3+3/3 or 33-3+3/3 or 3*3/.3+3/3
15. Leonard Euler (1707-1783)
16. There are three set of possible solutions.
(1) 28 to 52 (2) 55 to 70 (3) 198 to 202
17. Cycloid
18. Ramanujan Number
19. M K Vainu Bappu (1927-1982)
20. Brahmagupta
21. Pythagoras (570 BC-495 BC)
22. Georg Cantor (1845-1918)
23. Steven Wright
24. Johann von Goethe (1749-1832)
25. Andre Weil (1906-1998)
26. Augustus De Morgan (1806-1871) (Since he was 43 years old in the year 1849 such that x=43 and x2=1849)
27. Albert Einstein (1879-1955)
28. G. H. Hardy (1877-1947)
29. Jean D’Alembert (1717-1783)
30. Albert Einstein (1879-1955)
Maths Tricks
06 September 2012
SIMPLE... BUT FUNNY... THAT IS MATHEMATICS
Problem:
Can
you form “100” using all digits 1, 2, 3, 4, 5, 6, 7, 8 and 9 exactly
once. Any mathematical symbols can be used. (There is no restriction in
the number of symbols used)
Answer(s):
123 – 45 – 67 + 89 = 100
12 – 3 – 4 + 5 – 6 + 7 + 89 = 100
12 + 3 – 4 + 5 + 67 + 8 + 9 = 100
98 + 1 + (27/54) + (3/6) = 100
(1 x 2) + 34 + 56 + 7 – 8 + 9 = 100
1 + 2 + 3 + 4 + 5 + 6 + 7 + (8 x 9) = 100
1 + (2 x 3) + 4 + 5 + 67 + 8 + 9 = 100
(-1 x 2) – 3 – 4 – 5 + (6 x 7) + (8 x 9) = 100
123 + 4 – 5 + 67 – 89 = 100
123 – 4 – 5 – 6 – 7 + 8 – 9 = 100
(1 + 2 – 3 – 4) x (5 – 6 – 7 – 8 – 9) = 100
(9 + 8 + 7 + 6 – 5) x (4 + 3 – 2 – 1) = 100
19 + (3 x 2) + 4 + 5 + 6 +78 = 100
87 + 9 + 6 + 5 – (3 x 2) - 14 = 100
98 – 7 + 6 + 5 – 4 + 3 – 2 + 1 = 100
79 + (8 x 3) – 4 + 6 – 5 x (2 – 1) = 100
69 + 8 + 7 + (5 x 4) – 3 – 2 + 1 = 100
97 + 8 – 6 + 4 – 5 + 3 – 2 + 1 = 100
83 + 45 – 29 + 7 – (6 x 1) = 100
(78 x 2) – 65 + 4 – 3 + 9 – 1 = 100
147 – 85 + 23 + 6 + 9 = 100
783/9 + 6 + 5 + 4 – 3 + 2 – 1 = 100
852/6 – 39 – 7 + 41 = 100
85 + 9 + 6 + 7 – 3 – 4 x (2 – 1) = 100
196 – 87 + 25 – 34 = 100
12 + 34 + 56 – 7 + 8 - √9 = 100
1 + (23 x 4) + 5 – 6 + 7 – 8 + 9 = 100
9 – 8 + 7 + 65 + 4 + (23 x 1) = 100
(9 x 8 x 7) + 6 + 5 + 4 + (3 x 2) + 1 = 100
27 – 9 – 8 – 6 – 5 + 4 – 3 – 1 = 100
87 + 9 + 3 + (4/5) + (1.2/6) = 100
-1 – 2 – 3 + 4 + 5 + 6 – 7 + 98 = 100
182 – 97 + 6 +5 + 4 – 3 = 100
246 - (8 x 7) – 59 – 31 = 100
(9 x 4) + (6 x 3) + (8 x 7) - (5 x 2 x 1) = 100
√9 + 24 + 53 + 8 + 7 + 6 - 1 = 100
265 – 79 – 84 – 3 + 1 = 100
(1² x 8 x 9) + 67 – 35 - 4 = 100
1 x (9.8 + .2) x (4 – 3 + 7 - 6) x 5 = 100
(6 x 9) x (5 - 4) + 18/2 + 37 = 100
3² + (8 x 7) + (6 x 9) – 14 - 5 = 100
(4 – 3) x 2 + (7 x 5) + √81 + (6 x 9) = 100
36/4 + (8 x 7) + 25 + 9 + 1 = 100
....... ........ ........
98 + 2 + 4 + 3 – 7 + 1 + 5 – 6 = 100
6C3 + 8C4 + 9 + 1 + 5 + 2 – 7 = 100
6C3 + 8C4 + 9 + 1 + 5 + 2 – 7 = 100
....... ........ ........
Mathematical Symbols - Basic math symbols
.
Symbol |
Symbol Name
|
=
|
equals sign
|
≠
|
not equal sign
|
>
|
strict inequality
|
<
|
strict inequality
|
≥
|
inequality
|
≤
| |
( )
|
parentheses
|
[ ]
|
brackets
|
+
|
plus sign
|
−
|
minus sign
|
±
|
plus - minus
|
∓
|
minus - plus
|
*
|
asterisk
|
×
|
times sign
|
∙
|
multiplication dot
|
÷
|
division sign / obelus
|
/
|
division slash
|
–
|
horizontal line
|
mod
|
modulo
|
.
|
period
|
a b
|
power
|
a^b
|
caret
|
√a
|
square root
|
3√a
|
cube root
|
4√a
|
forth root
|
n√a
|
n-th root (radical)
|
%
|
percent
|
‰
|
per-mille
|
ppm
|
per-million
|
ppb
|
per-billion
|
ppt
|
per-trillion
|
Mathematical Symbols - Roman Numerals
Number
|
Roman numeral
|
1
|
I
|
2
|
II
|
3
|
III
|
4
|
IV
|
5
|
V
|
6
|
VI
|
7
|
VII
|
8
|
VIII
|
9
|
IX
|
10
| |
11
|
XI
|
12
|
XII
|
13
|
XIII
|
14
|
XIV
|
15
|
XV
|
16
|
XVI
|
17
|
XVII
|
18
|
XVIII
|
19
|
XIX
|
20
|
XX
|
30
|
XXX
|
40
|
XL
|
50
|
L
|
60
|
LX
|
70
|
LXX
|
80
|
LXXX
|
90
|
XC
|
100
|
C
|
200
|
CC
|
300
|
CCC
|
400
|
CD
|
500
|
D
|
600
|
DC
|
700
|
DCC
|
800
|
DCCC
|
900
|
CM
|
1000
|
M
|
5000
|
V
|
10000
|
X
|
50000
|
L
|
100000
|
C
|
500000
|
D
|
1000000
|
M
|
Courtesy : http://manooss123.blogspot.in/ & http://sapost.blogspot.in/
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