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Quantitative Aptitude - MCQ Practice Questions

Practice free Quantitative Aptitude multiple-choice questions with detailed answers and explanations. Perfect for competitive exam preparation.

1,105 questions | 100% Free

Q.21Medium

If the HCF of two numbers is 18 and their LCM is 324, one number is 36. The other number is:

Q.22Easy

The HCF of two consecutive even numbers is:

Q.23Medium

What is the greatest number that divides 110, 165, and 220 exactly?

Q.24Hard

Two numbers have HCF of 7 and LCM of 140. The numbers could be:

Q.25Hard

Find the LCM of 108, 135, and 162.

Q.26Easy

What is the HCF of 96 and 120?

Q.27Medium

The LCM of two numbers is 60 and their HCF is 4. If one number is 20, find the other.

Q.28Hard

Three numbers are in the ratio 2:3:4, and their HCF is 5. Find the sum of the numbers.

Q.29Hard

What is the smallest 4-digit number divisible by 12, 18, and 24?

Q.30Easy

Find the HCF of 84 and 126 using the Euclidean algorithm.

Q.31Easy

If HCF of two numbers is 15 and their product is 2700, find their LCM.

Q.32Medium

The HCF of two numbers is 12 and their LCM is 72. If one number is 24, find the other number.

Q.33Easy

Find the HCF of 45, 60, and 75.

Q.34Easy

What is the LCM of 20, 30, and 40?

Q.35Medium

The LCM of two numbers is 144 and their HCF is 12. If one number is 36, what is the other?

Q.36Medium

Find the greatest number that can divide 150 and 200 with no remainder.

Q.37Medium

Two pipes fill a tank in 12 and 18 minutes respectively. After how many minutes will they both fill the tank together (in terms of LCM concept)?

Q.38Easy

What is the HCF of 72 and 90?

Q.39Medium

The ratio of two numbers is 3:5 and their HCF is 8. Find the two numbers.

Q.40Medium

Find the smallest number that is divisible by 12, 18, and 24.