Numerical Ability

Find the sum of the first 20 natural numbers.

Find the sum of the first 15 natural numbers.

Find the sum of squares of the first 10 natural numbers.

Find the sum of cubes of the first 5 natural numbers.

Find the HCF of 12 and 18.

Find the LCM of 12 and 18.

Find the HCF of 24, 36, and 60.

Find the LCM of 4, 6, and 8.

Find the smallest number divisible by 12, 15, and 20.

What is the remainder when 2^10 is divided by 7?

What is the unit digit of 7^45?

What is the unit digit of 3^101?

Is 91 a prime number?

How many prime numbers are there between 1 and 20?

Express 15% as a fraction in lowest terms.

Convert 0.375 to a fraction in lowest terms.

What is the place value of 7 in 4,732?

Find the sum of the first 12 odd numbers.

A number when divided by 5 leaves remainder 3. What is the remainder when its square is divided by 5?

Find the number of factors of 36.

Find the number of factors of 100.

Which of the following is a perfect square?

Find the largest 4-digit number divisible by 27.

Find the smallest 4-digit number divisible by 32.

Find the value of 2^5 × 2^3.