MATHS TRICKS ON CLOCKS
QUESTION:Find the Angle between hands at 5:30
SOLUTION:So here's a simple trick
for it
Suppose the time isX : Y min
Angle between X and Y
=I(X*30)-((Y*11)/2)| Angle between hands at 5:30
Step 1:X=5, Y=30
Step 2: 5*30 =150
Step 3: (30*11)/2 = 165
Step 4: 165-150=15
Thus, angle between hands at 5:30 is15 degrees.@maths_sorcerer
QUESTION:Find the Angle between hands at 5:30
SOLUTION:So here's a simple trick
for it
Suppose the time isX : Y min
Angle between X and Y
=I(X*30)-((Y*11)/2)| Angle between hands at 5:30
Step 1:X=5, Y=30
Step 2: 5*30 =150
Step 3: (30*11)/2 = 165
Step 4: 165-150=15
Thus, angle between hands at 5:30 is15 degrees.@maths_sorcerer
THE MISSING NUMBER TRICK.
(a) Ask someone to write on a piece of paper (so you can't see it) a large number (I suggest 5 digits to start with).
(b) Ask them to rearrange the digits in that number and write it above the first number if it is larger but below it if smaller.
(c) Then tell them to subtract the two numbers (they can use a calculator if they wish).
(d) Ask them to circle any digit in
the result except zero.
(e) They can then read out (slowly), all the other digits in random order. And you will tell them what the digit is that they circled.
(f) To find the missing digit, simply add up all the digits that they give you - repeatedly - until a single digit 1 to 9 is obtained. If this value is 9, then the number they circled was 9.Otherwise, add a value to the number until it is 9. This value is the number they circled! e.g. If the digits are 9, 8, 8 and 4, then 9+8+8+4=29, 2+9=11, 1+1=2. 9-2=7. Therefore the number circled was 7.
@maths_sorcerer
(a) Ask someone to write on a piece of paper (so you can't see it) a large number (I suggest 5 digits to start with).
(b) Ask them to rearrange the digits in that number and write it above the first number if it is larger but below it if smaller.
(c) Then tell them to subtract the two numbers (they can use a calculator if they wish).
(d) Ask them to circle any digit in
the result except zero.
(e) They can then read out (slowly), all the other digits in random order. And you will tell them what the digit is that they circled.
(f) To find the missing digit, simply add up all the digits that they give you - repeatedly - until a single digit 1 to 9 is obtained. If this value is 9, then the number they circled was 9.Otherwise, add a value to the number until it is 9. This value is the number they circled! e.g. If the digits are 9, 8, 8 and 4, then 9+8+8+4=29, 2+9=11, 1+1=2. 9-2=7. Therefore the number circled was 7.
@maths_sorcerer
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.
@maths_sorcerer
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.
@maths_sorcerer
2519
It is an interesting number. Here are some funny math interesting facts about this number 2519. Enjoy the Facts.
2519 Mod n means the reminder of 2519/n, here is the integer division. 2519 Mod n
2519 Mod 2 = 1
2519 Mod 3 = 2
2519 Mod 4 = 3
2519 Mod 5 = 4
2519 Mod 6 = 5
2519 Mod 7=6
2519 Mod 8 = 7
2519 Mod 9= 8
2519 Mod 10 = 9
Sequential Numbers with 2519
1259 x 2 + 1 = 2519
839 x 3 + 2 = 2519
629 x 4 + 3 = 2519
503 x 5 + 4 = 2519
419 x 6 + 5 = 2519
359 x 7 +6 = 2519
314x8+7= 2519
279 x 9+8= 2519
251 x 10 + 9 = 2519
This is a funny interesting part of maths. Enjoy it with Fun!
@maths_sorcerer
It is an interesting number. Here are some funny math interesting facts about this number 2519. Enjoy the Facts.
2519 Mod n means the reminder of 2519/n, here is the integer division. 2519 Mod n
2519 Mod 2 = 1
2519 Mod 3 = 2
2519 Mod 4 = 3
2519 Mod 5 = 4
2519 Mod 6 = 5
2519 Mod 7=6
2519 Mod 8 = 7
2519 Mod 9= 8
2519 Mod 10 = 9
Sequential Numbers with 2519
1259 x 2 + 1 = 2519
839 x 3 + 2 = 2519
629 x 4 + 3 = 2519
503 x 5 + 4 = 2519
419 x 6 + 5 = 2519
359 x 7 +6 = 2519
314x8+7= 2519
279 x 9+8= 2519
251 x 10 + 9 = 2519
This is a funny interesting part of maths. Enjoy it with Fun!
@maths_sorcerer
