In a city, 20% of the population travels by car, 50% travels by bus and 10% travels by both car... View Article
In a town of 10,000 families it was found that 40% family but newspaper A, 20% families buy newspaper B... View Article
Let n (U) = 700, n (A) = 200, n (B) = 300 and n (A ⋂ B) = 100,... View Article
If X = {4n – 3n – 1; n ∈ N} and Y = {9 (n – 1) : n... View Article
If the sets A and B are defined as A = {(x, y) : y = ex, x ∈ R},... View Article
If all permutations of the letters of the word ‘AGAIN’ are arranged as in dictionary, then fiftieth word is: (1)... View Article
The sum of all five-digit numbers that can be formed using the digits 1, 2, 3, 4, 5 when repetition... View Article
How many ways are there to arrange the letters in the word `GARDEN’ with the vowels in alphabetical order? (1)... View Article
20 persons are invited to a party. In how many different ways can they and the host be seated at... View Article
The letters of the word ‘COCHIN’ are permuted and all the permutations are arranged in alphabetical order as in an... View Article
How many numbers lying between 999 and 10000 can be formed with the help of the digits 0, 2, 3,... View Article
The number of natural numbers less than 1000, in which no two digits are repeated, is: (1) 738 (2) 792... View Article
The number of permutations of the letters of the word CONSEQUENCE in which all the three E’s arc together, is:... View Article
Eight different letters of the alphabet are given. Words of four letters from these are formed. The number of such... View Article
How many 10-digit numbers can be written by using digits 9 and 2? (1) 10C1+9C2 (2) 210 (3) 10C2 (4)... View Article
If the LCM of p, q is r2t4s2, where r, s, t are prime numbers and p, q are the... View Article
The number of ways in which 5 ladies and 7 gentlemen can be seated in a round table so that... View Article
The ten’s digit in 1!+ 4!+ 7!+ 10!+ 12!+ 13!+ 15! + 16!+ 17! is divisible by: (1) 4 (2)... View Article
In how many different ways can the letters of the word MATHEMATICS be arranged? (1) 11! (2) 11!/2! (3) 11!/(2!)2... View Article
9 balls are to be placed in 9 boxes and 5 of the balls cannot fit into 3 small boxes.... View Article
