IQ Quiz 80 IQ Quiz Questions and Answers. Please enter your email: 1. The difference between a two-digit number and the number obtained by interchanging the digits is 27. What is the difference between the digits of the number? 3 9 5 6 2. A number consists of two digits whose sum is 8. If 18 is added to the number, its digits are interchanged. The number is: 26 62 53 35 3. A certain number of two digits is three times the sum of its digits and if 45 be added to it, the digits are reversed, The number is: 32 27 23 72 4. The sum of three consecutive odd numbers is 57. The middle one is : 21 23 19 17 5. Two numbers are such that the ratio between them is 4 : 7. If each is increased by 4, the ratio becomes 3 : 5. The larger number is: 64 48 36 56 6. The sum of two numbers is twice their difference. If one of the numbers is 10, the other one is : 30 -3.33 3 1/ 3 17-Apr 7. In a two-digit number, the sum of the digits is 15. If 9 is added to the number, the digits are reversed. The number is : 96 69 78 87 8. If one-seventh of a number exceeds its eleventh part by 100, then the number is : 770 1925 1825 1100 9. The sum of the squares of two numbers is 68 and the square of their difference is 36. The product of the two numbers is: 32 58 16 104 10. The sum of seven numbers is 235. The average of the first three is 23 and that of the last three is 42. The fourth number is : 69 40 195 126 Loading … Question 1 of 10 Previous PostHistory of India Test 42 Next PostQuantitative Aptitude 21