My first is in Family and also in Hill
My second in Circle and also in Flood
My third is in Forest and also in Clock
My fourth stands alone in my frozen wastes.
What am I?
(A) 13
(B) 11
(C) 17
(D) None of the above
Find the missing number, $x$, in the following matrix
$$\begin{matrix}
16 & 13 & 9\\
11 & 8 & 6\\
9 & 7 & x
\end{matrix}$$
An integer is round if it is greater than $0$ and the sum of its digits in decimal representation is a multiple of $10$.
Find an optimal procedure to compute the $N-th$ smallest round integer.
E.g.
If $N = 2$
then Answer is $28$
As the first round integer is $19 (1+9 = 10)$ and the second roun...
$Given$:
A, B, P are distinct digits
AA, AAA, ABB are concatenated Numbers.
$Relations$:
$P $= $A $+$ A $+ $B$
$(AA + ABB)^P$ - $(ABB)^P$
= $(AAA - A) ^P$ + $(B+B^B*B)$ + $(B^B)^P$
Don’t be afraid to make reasonable assumptions to quickly deduce A and B.
The date today is 7th June 2019, or 07/06/2019 (using the American MM/DD/YYYY ordering).
When is the next date that when written in this way has all eight digits different?
0
There are two friends Ram and Shyam who attend a course in college.
In a certain course, there is exactly one lesson per day over the course of $D$ days (numbered $1$ through $D$). We have a string $S$ with length $D$ describing the lessons Ram attended — each character being 'A' if Ram was absen...
0
Given two natural numbers N and K where N >= 2, you have a list of available numbers as all numbers in inclusive range K to K+N-1. You can sum any two natural numbers in available list to create a new natural number, which is then added to list of available numbers. How many natural number exist ...
$$\begin{matrix}
22 & 12 & 0 & 15 & 18\\
15 & 27 & 26 & 18\\
13 & 8 & 22\\
27 & 13\\
0\\
\end{matrix}$$
N is not a square number and consists of 2019 factorial multiplication as shown below:
$N=1!\times 2!\times 3!\cdots 2018!\times2019!$
At least how many factorial needed to be removed from the multiplication to make N a square number?
