Day of the Week:

Day of the Date

Here are some shortcuts/tips to find out the day of the week from the given date. You can play these trick as instructed, with your parents or friends and prove your talent to them.

January has 31 days. It means that every date in February will be 3 days later than the same date in January(28 is 4 weeks exactly). The below table is calculated in such a way. Remember this table which will help you to calculate.

January	0
February	3
March	3
April	6
May	1
June	4
July	6
August	2
September	5
October	0
November	3
December	5

Step1: Ask for the Date. Ex: 23^rd June 1986
Step2: Number of the month on the list, June is 4.
Step3: Take the date of the month, that is 23
Step4: Take the last 2 digits of the year, that is 86.
Step5: Find out the number of leap years. Divide the last 2 digits of the year by 4, 86 divide by 4 is 21.
Step6: Now add all the 4 numbers: 4 + 23 + 86 + 21 = 134.
Step7: Divide 134 by 7 = 19 remainder 1.
The reminder tells you the day.

Sunday	0
Monday	1
Tuesday	2
Wednesday	3
Thursday	4
Friday	5
Saturday	6

Answer: Monday

ARMY, NAVY & AIR FORCE

Courses & Work Area

•         Technology/Engineering

•         Management / Administration

•         Medical

•         Combined Defence Service Exam of UPSC

•         Detectives

–       CBI (Central Bureau of Investigation), RAW (Research & Analysis Wing)

–       National Institute of Private Investigation, Delhi – One Year Diploma

–       Global Detective Agency, Chennai

MICROBIOLOGY & BIOINFORMATICS

MICROBIOLOGY & BIOINFORMATICS

Introduction

•         Microbiology is the study of microscopic organisms. Microbiologists study the relationships between microbes and man, animals and plants.

Working Conditions

•         Microbiologists work in laboratories located in research organisations, hospitals, food and beverage industries, pharmaceuticals firms.

Personality

•         An analytical and scientific temper, intense interest in research, keen observation, perseverance, and hardwork are required.

Bioinformatics

•         Bioinformatics encompasses research, development and application of computational tools and aims at expanding the use of biological medical, behavioural, or health data 

ENGINEERING TECHNICIANS

ENGINEERING TECHNICIANS

Introduction

•         Engineering technicians assist engineers and scientists in assembly, repair and experiment oriented tasks. These are highly technical skilled operations involving a basic understanding a theoretical concepts and focus on functional precision and accuracy which the task requires. Engineering technicians study for a diploma.

Working Conditions

•         Technicians work on shop floor, in research labs and in clients premises. The task is often strenuous as it requires skill, precision and patience. In chemical factories, the job can be hazardous with toxic fumes while in air-conditioning the task could involve significant amount of outdoor work often in the hot summer.

Personality

•         Technicians need mathematical and mechanical aptitude. They should be able to interpret abstract concepts, apply scientific principles from the design stage to the manufacturing processes.

Courses & Work Area

•Aeronautical Engineering Technician

•Air-Condition & Refrigerator Technician

•Automobile Servicing Technician

•Appliances Servicing Technician

•Chemical Engineering Technician

•Civil Engineering Technician

•Computer/Telecommunication Engineering Technician

•Electronic Engineering Technician

•Mechanical Engineering Technician

•Marine Services Technician

•Plastic Technician

Age Calculation Tricks:

Age Calculation Tricks:

Step1: Multiply the first number of the age by 5. (If <10, ex 5, consider it as 05. If it is >100, ex: 102, then take 10 as the first digit, 2 as the second one.)

Step2: Add 3 to the result.

Step3: Double the answer.

Step4: Add the second digit of the number with the result.

Step5: Subtract 6 from it.

Names for Powers of 10

Values Zero's Names
100 0 One
101 1 Ten
102 2 Hundred
103 3 Thousand
104 4 Myriad
106 6 Million
109 9 Billion
1012 12 Trillion
1015 15 Quadrillion
1018 18 Quintillion
1021 21 Sextillion
1024 24 Septillion
1027 27 Octillion
1030 30 Nonillion
1033 33 Decillion
1036 36 Undecillion
1039 39 Duodecillion
1042 42 Tredecillion
1045 45 Quattuordecillion
1048 48 Quindecillion
1051 51 Sexdecillion
1054 54 Septdecillion / Septendecillion
1057 57 Octodecillion
1060 60 Nondecillion / Novemdecillion
1063 63 Vigintillion
1066 66 Unvigintillion
1069 69 Duovigintillion
1072 72 Trevigintillion
1075 75 Quattuorvigintillion
1078 78 Quinvigintillion
1081 81 Sexvigintillion
1084 84 Septenvigintillion
1087 87 Octovigintillion
1090 90 Novemvigintillionn
1093 93 Trigintillion
1096 96 Untrigintillion
1099 99 Duotrigintillion
10100 100 Googol
10102 102 Trestrigintillion
10120 120 Novemtrigintillion
10123 123 Quadragintillion
10138 138 Quinto-Quadragintillion
10153 153 Quinquagintillion
10180 180 Novemquinquagintillion
10183 183 Sexagintillion
10213 213 Septuagintillion
10240 240 Novemseptuagintillion
10243 243 Octogintillion
10261 261 Sexoctogintillion
10273 273 Nonagintillion
10300 300 Novemnonagintillion
10303 303 Centillion
10309 309 Duocentillion
10312 312 Trescentillion
10351 351 Centumsedecillion
10366 366 Primo-Vigesimo-Centillion
10402 402 Trestrigintacentillion
10603 603 Ducentillion
10624 624 Septenducentillion
10903 903 Trecentillion
102421 2421 Sexoctingentillion
103003 3003 Millillion
103000003 3000003 Milli-Millillion

Day of the Date

Day of the Week:



January has 31 days. It means that every date in February will be 3 days later than the same date in January(28 is 4 weeks exactly). The below table is calculated in such a way. Remember this table which will help you to calculate.

January	0
February	3
March	3
April	6
May	1
June	4
July	6
August	2
September	5
October	0
November	3
December	5

Step1: Ask for the Date. Ex: 23^rd June 1986
Step2: Number of the month on the list, June is 4.
Step3: Take the date of the month, that is 23
Step4: Take the last 2 digits of the year, that is 86.
Step5: Find out the number of leap years. Divide the last 2 digits of the year by 4, 86 divide by 4 is 21.
Step6: Now add all the 4 numbers: 4 + 23 + 86 + 21 = 134.
Step7: Divide 134 by 7 = 19 remainder 1.
The reminder tells you the day.

Sunday	0
Monday	1
Tuesday	2
Wednesday	3
Thursday	4
Friday	5
Saturday	6

Answer: Monday

The 11 Rule

The 11 Rule

You likely all know the 10 rule (to multiply by 10, just add a 0 behind the number) but do you know the 11 rule? It is as easy! You should be able to do this one in you head for any two digit number. Practice it on paper first!To multiply any two digit number by 11:

• For this example we will use 54.
• Separate the two digits in you mind (5__4).
• Notice the hole between them!
• Add the 5 and the 4 together (5+4=9)
• Put the resulting 9 in the hole 594. That's it! 11 x 54=594

The only thing tricky to remember is that if the result of the addition is greater than 9, you only put the "ones" digit in the hole and carry the "tens" digit from the addition. For example 11 x 57 ... 5__7 ... 5+7=12 ... put the 2 in the hole and add the 1 from the 12 to the 5 in to get 6 for a result of 627 ... 11 x 57 = 627
Practice it on paper first!

Multiply Up to 20X20 In Your Head

Multiply Up to 20X20 In Your Head

In just FIVE minutes you should learn to quickly multiply up to 20x20 in your head.  With this trick, you will be able to multiply any two numbers from 11 to 19 in your head quickly, without the use of a calculator.

I will assume that you know your multiplication table reasonably well up to 10x10.

Try this:

• Take 15 x 13 for an example.
• Always place the larger number of the two on top in your mind.
• Then draw the shape of Africa mentally so it covers the 15 and the 3 from the 13 below. Those covered numbers are all you need.
• First add 15 + 3 = 18
• Add a zero behind it (multiply by 10) to get 180.
• Multiply the covered lower 3 x the single digit above it the "5" (3x5= 15)
• Add 180 + 15 = 195.

That is It! Wasn't that easy? Practice it on paper first!

facts in Mathematics

                                                                Sequential Inputs of numbers with 8

1 x 8 + 1 = 9

12 x 8 + 2 = 98

123 x 8 + 3 = 987

1234 x 8 + 4 = 9876

12345 x 8 + 5 = 98765

123456 x 8 + 6 = 987654

1234567 x 8 + 7 = 9876543

12345678 x 8 + 8 = 98765432

123456789 x 8 + 9 = 987654321

                                                                         Sequential 1's with 9

1 x 9 + 2 = 11

12 x 9 + 3 = 111

123 x 9 + 4 = 1111

1234 x 9 + 5 = 11111

12345 x 9 + 6 = 111111

123456 x 9 + 7 = 1111111

1234567 x 9 + 8 = 11111111

12345678 x 9 + 9 = 111111111

123456789 x 9 + 10 = 1111111111

Sequential 8's with 9

9 x 9 + 7 = 88

98 x 9 + 6 = 888

987 x 9 + 5 = 8888

9876 x 9 + 4 = 88888

98765 x 9 + 3 = 888888

987654 x 9 + 2 = 8888888

9876543 x 9 + 1 = 88888888

98765432 x 9 + 0 = 888888888

Numeric Palindrome with 1's

1 x 1 = 1

11 x 11 = 121

111 x 111 = 12321

1111 x 1111 = 1234321

11111 x 11111 = 123454321

111111 x 111111 = 12345654321

1111111 x 1111111 = 1234567654321

11111111 x 11111111 = 123456787654321

111111111 x 111111111 = 12345678987654321

Without 8

12345679 x 9 = 111111111

12345679 x 18 = 222222222

12345679 x 27 = 333333333

12345679 x 36 = 444444444

12345679 x 45 = 555555555

12345679 x 54 = 666666666

12345679 x 63 = 777777777

12345679 x 72 = 888888888

12345679 x 81 = 999999999

Sequential Inputs of 9

9 x 9 = 81

99 x 99 = 9801

999 x 999 = 998001

9999 x 9999 = 99980001

99999 x 99999 = 9999800001

999999 x 999999 = 999998000001

9999999 x 9999999 = 99999980000001

99999999 x 99999999 = 9999999800000001

999999999 x 999999999 = 999999998000000001

......................................

Sequential Inputs of 6

6 x 7 = 42

66 x 67 = 4422

666 x 667 = 444222

6666 x 6667 = 44442222

66666 x 66667 = 4444422222

666666 x 666667 = 444444222222

6666666 x 6666667 = 44444442222222

66666666 x 66666667 = 4444444422222222

666666666 x 666666667 = 444444444222222222