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Let P Be A Prime Number Such That P 3 Let X P 1 The Number Of Primes In The List

Let p be a prime number such that p ≥ 3. Let x = p! + 1. The number of... View Article

1) N is product of three distinct prime numbers. 2) N is product of 4 distinct prime numbers. 3) N... View Article

1) 144 2) 1296 3) 256 4) none of these Answer: (2) 1296 Solution: In a chessboard, we have 9... View Article

1) (n+1)2/4 2)(n-1)2/4 3) (n+1)2/2 4) (n-1)2/2 Answer: (2) (n-1)2/4 Solution: Given, n is an odd number A.P. = 1,2,3,4,….,n... View Article

1) (m + 1) 2n 2) (m + 1) 2n – 1 3) (m + 1) 2n + 1 4)... View Article

If 1/4Cn = 1/5Cn + 1/6Cn, then n is equal to? 1) 3 2) 2 3) 1 4) 0 5)... View Article

1) n/2 2) n/2 – 1 3) n – 1 4) (2n-1)/2 Answer: (1) n/2 Solution: tn = nsn –... View Article

Let Tn denote the number of triangles which can be formed using the vertices of a regular polygon of n... View Article

1) 8 2) 9 3) 10 4) 11 5) 12 Answer: (2) 9 Solution: Number of triangle = n+3C3 =... View Article

1) 25 2) 35 3) 20 4) 15 Answer: (1) 25 Solution: Number of diagonals = n(n-1)/2 where n is... View Article

1) m-1C2 . n-1C2 2) mC2 . nC2 3) m-1C2. nC2 4) mC2 .n-1C2 Answer: (2) mC2.nC2 Solution: A parallelogram... View Article

1) 28 2) 20 3) 10 4) 16 Answer: (2) 20 Solution: Octagon has 8 sides Number of diagonals =... View Article

1) 26 2) 28 3) 27 4) 25 Answer: (1) 26 Solution: Required number of straight lines from those 8... View Article

Three straight lines L1, L2 and L3 are parallel and lie in the same plane. A total of m points... View Article

1) N >190 2) N ≤ 100 3) 100 < N ≤ 140 4) 140 ≤ N ≤ 190 Answer:... View Article

1) 296 2) 540 3) 408 4) 348 Answer: (3) 408 Solution: Given, there are 8 collinear points. Hence, by... View Article

Losing a hydrogen refers to the oxidation process. To learn in detail about the oxidation and reduction, visit BYJU’S –... View Article

Common indicators which are used to indicate the acidic or basic nature are: Litmus phenolphthalein methyl orange bromothymol blue To... View Article

Yes, silicon is a polymer made up of siloxane. To learn in detail about the polymers, visit BYJU’S – The... View Article

NH3 is a hydrogen bond. To learn in detail about the hydrogen bond, visit BYJU’S – The Learning App!!