Quantitative Aptitude - MCQ Practice Questions

If the sum of digits of a number is 21 and the number is divisible by 3, which statement is true?

If x is a prime number greater than 2, which of the following must be true?

What is the smallest natural number that has exactly 10 divisors?

Three bells ring at intervals of 12, 18, and 24 minutes. If they ring together at 10:00 AM, at what time will they ring together again?

A number leaves remainders 2, 3, and 4 when divided by 3, 4, and 5 respectively. What is the number?

If 2^x = 32, what is the value of x?

The HCF of two numbers is 23 and their LCM is 1449. If one number is 161, what is the other?

How many numbers from 1 to 200 are divisible by 7 but not by 14?

What is the sum of all prime numbers less than 20?

If a number is divisible by both 9 and 16, it must be divisible by:

What is the difference between the largest 3-digit number and the smallest 3-digit number that are divisible by 11?

What is the number of divisors of 360?

Find the smallest 4-digit number that is a perfect cube.

If x = 2^a × 3^b × 5^c, and x is divisible by 72 but not by 8, find the minimum value of a.

Which of the following is a perfect number?

Two numbers have a ratio of 3:5. If their HCF is 7, what is their sum?

If a number N = 2^4 × 3^3 × 5^2 × 7, how many of its divisors are odd?

What is the smallest number that leaves remainder 1 when divided by 2, 3, 4, 5, and 6?

If the LCM of two numbers is 144 and their HCF is 12, find the product of the two numbers.

What is the sum of all prime numbers between 10 and 30?