Permutation and Combination - General Questions

1.From a group of 7 men and 6 women, five persons are to be selected to form a committee so that at least 3 men are there on the committee. In how many ways can it be done?

564 645 735 756

2. In how many different ways can the letters of the word 'LEADING' be arranged in such a way that the vowels always come together?

360 480 720 5040

3.In how many different ways can the letters of the word 'CORPORATION' be arranged so that the vowels always come together?

810 1440 2880 50400

4.Out of 7 consonants and 4 vowels, how many words of 3 consonants and 2 vowels can be formed?

210 1050 25200 21400

5.In how many ways can the letters of the word 'LEADER' be arranged?

72 144 360 720

Numbers Aptitude Questions with Answers

1.In a 2 digit numbers, the digit in the unit’s place is 2 times the digit in 10’s place and sum of the digits is equal to 9. What is the number?

30 16 36 56

2.The difference between a 2 digit numbers & the number getting by place changing the 2 digits is 54. What is the difference between the 2 digits of that particular number?

5 6 7 8

3.The sum of the digits of a 2 number is 2/5 of the difference between the number and the number obtained by place changing the positions of the particular digits. What is the exact difference between the particular digits of the number?

5 6 Cannot be determined None of these

4.The difference between 2 numbers is 1356. When the largest number is divided by the smallest one, the quotient is 6 and the remainder is 15. The smaller number is ?

570 270 370 470

5.If the number getting on position changing the digits of a 2 digit number is 18 more than the original number and the sum of the digits is 6. What is the particular original number?

42 52 62 72

6.The product of 4 consecutive even numbers is always divisible by?

384 284 584 684

7.The sum of two positive integers multiplied by the bigger number is 204, and their difference multiplied by the smaller number is 35. What are the numbers?

12,5 13,5 14,5 16,5

8.The product of two numbers is 9375 and the quotient, when the larger one is divided by the smaller, is 15. What is the sum of the numbers?

500 400 600 700