Let x be a prime number such that x≥23. Given that y= x!+1. The number of primes in the list y+1, y+2, y+3...y+x-1 is?
none of these
For 1≤n≤x−1, y+n=x!+n+1, which is divisible by n+1 always. Therefore, there is no prime number in this list.
Find the values of x and y that satisfy the below given pair of equations, where x≠0 & y≠0. 2x+3y=13 5x−4y=−2