What is the missing number in the series 1, 4, 27,____, 3125?
IF
6 + 3 = 39
9 + 4 = 513
18 + 16 = 234
Then
6 + 5 = ???
Check your answer:-
A person forgot his 5 digit pin code, but he remembers some hints.
Can you guess the person’s pin code from above hints ?
See Answer
also assume, 3rd digit is y then 5th digit should be 14-y.
So the number will look like this:-
<x^2><x><y><x+1><14-y>
As we also know the sum of all digits, we can say
x^2 + 2x +1 +14 = 30 (x+1)^2 = 16 x+1 = 4 x = 3
As sum of 2nd and third digit is 10 => x+y = 10 => y=7
Thus the pin code is 93747.
missing numbers in the series 4, 10, 22, 46, ?, ?, 382
Find the missing numbers in this series: 4, 10, 22, 46, _____, _____, 382
See Answer
How ?
Every number in the series is following this pattern
Next number = (previous number)*2 + 2;
0.999…. = 1, Right or Wrong?
See Answer
x = 0.999...
10x = 9.999...
10x - x = 9.999... - 0.999...
9x = 9
x = 1
1/3 = 0.333...
3x(1/3) = 3x(0.333...) = 0.999...
1 = 0.999...
what is the next number in sequence
See Answer
Next number in the series will be 3263442.
How?
every number in the sequence= (previous number)x(previous number +1)
thus next number in this sequence will be 1806*1807 = 3263442.
Numbers: 1, 5, 7 and 8.
Operators: +, -, * and /
You can use ( ) brackets as well.
Rules:-
See Answer
Its first digit is the number of occurrence of 0’s in the number.
Second digit is the number of occurrence of 1’s in the number.
Third digit is the number of occurrence of 2’s in the number.
4th digit is the number of occurrence of 3’s in the number.
and so on up to 10th digit(which is number of occurrence of 9’s in the number).
See Answer
what is next number in this series? 1, 2, 3, 5, 8, ???
Hint: this is a classic and very important series.
See Solution
Next number in the series will be 13.
How?
every number in this series is sum of previous two numbers, thus the next number should be 5 + 8 = 13.
This classic and very important series is called Fibonacci series.
23, 5, 12, 3, 15, 13, ???
Hint: A way to say “HELLO”
