Q1. A number is divisible by 9 if the sum of its digits is divisible by 9. Which digit should replace * in 24*71 to make it divisible by 9?A 3 B 4 C 2 D 5 View full solution →
Q2. Which of the following statements is always true about prime numbers?A The smallest prime number is 1. B All prime numbers are odd. C The product of two prime numbers is always prime. D Every prime number has exactly two factors. View full solution →
Q4. Which of the following is a pair of twin primes?A (3, 5) B (7, 11) C (19, 23) D (13, 17) View full solution →
Q5. What is the least number of square tiles required to pave the floor of a room 180 cm long and 150 cm wide?A 120 B 30 C 90 D 60 View full solution →
Q7. The sum of three consecutive odd numbers is 93. What is the largest of these numbers?A 29 B 31 C 33 D 35 View full solution →
Q8. A number is divisible by 10 if its last digit is:A any digit divisible by 10 B 5 C any even digit D 0 View full solution →
Q9. If a number is divisible by both 2 and 3, it is also divisible by:A 6 B 4 C 8 D 5 View full solution →
Q10. Three different containers contain 12 litres, 18 litres, and 30 litres of milk respectively. What is the maximum capacity of a container that can measure the milk of all the three containers an exact number of times?A 12 litres B 6 litres C 2 litres D 3 litres View full solution →
Q11. What is the greatest 3-digit number that is exactly divisible by 8, 12, and 15?A 980 B 1000 C 960 D 990 View full solution →
Q15. Two ropes of length 15m and 20m are to be cut into small pieces of equal length. What is the greatest possible length of each piece?A 3m B 5m C 1m D 10m View full solution →
Q16. Which of the following numbers is divisible by 9 but NOT by 6?A 108 B 162 C 135 D 216 View full solution →
Q17. What is the smallest number that leaves a remainder of 1 when divided by 3, 4, and 5?A 62 B 60 C 59 D 61 View full solution →
Q18. If the HCF of two numbers is 8, which of the following cannot be their LCM?A 24 B 60 C 48 D 72 View full solution →