There Are 10 Lamps In A Hall Each One Of Them Can Be Switched On Independently
1) 210 2) 10! 3) 1023 4) 102 Answer: (3) 1023 Solution: Since, we can either on or off the... View Article
1) 210 2) 10! 3) 1023 4) 102 Answer: (3) 1023 Solution: Since, we can either on or off the... View Article
1) 112 2) 56 3) 336 4) None of these Answer: (2) 56 Solution: Required number of ways = 8C3... View Article
1) 119 2) 44 3) 59 4) 40 Answer: (2) 44 Solution: Given ,there are 5 letters and 5 different... View Article
The value of \(\begin{array}{l}^{50}C_4 + \sum_{r=1}^{6} (^{56-r}C_3)\end{array} \) is: (1) 56C4 (2) 56C3 (3) 55C3 (4) 55C4 Answer: (1) 56C4 Solution: 50C4 + 55C3 +... View Article
The number of selecting at least 4 candidates from 8 candidates is 1) 270 2) 70 3) 163 4) None... View Article
Out of 6 boys and 4 girls, a group of 7 is to be formed. In how many ways can... View Article
The number of times the digit 5 will be written when listing the integers from 1 to 1000, is 1)... View Article
If m = nC2, then mC2 is equal to 1) 3nC4 2) n+1C4 3) 3. n+1C4 4) 3. n+1C3 5)... View Article
Everybody in a room shakes hands with everybody else. The total number of handshakes is 66. The total number of... View Article
The set S = {1, 2, 3, … , 12} is to be partitioned into three sets A,B,C of equal... View Article
The number of permutations of 4 letters that can be made out of the letters of the word ‘EXAMINATION’ is... View Article
The number of four-letter words that can be formed (the words need not be meaningful) using the letters of the... View Article
There are three sections in a question paper, each containing 5 questions. A candidate has to solve any 5 questions,... View Article
If 189C35 + 189CX = 190CX, then X is equal to 1) 34 2) 35 3) 36 4) 37 Answer:... View Article
All possible two factors products are formed from numbers 1, 2, 3, 4, …, 200. The number of factors out... View Article
How many different words can be formed by jumbling the letters in the word ‘MISSISSIPPI’ in which no two S... View Article
In a shop, there are five types of ice-creams available. A child buys six ice-creams. Statement I The number of... View Article
1) 485 2) 500 3) 486 4) 102 Answer: (1) 485 Solution: As per question, there could be four conditions,... View Article
The number of subsets of {1, 2, 3, … ,9} containing at least one odd number, is 1) 324 2)... View Article
Four dice are rolled. The number of possible outcomes in which at least one dice shows 2 is 1) 625... View Article