Number System Quiz

Simplify x⁹ × x⁵ × ×^–4 × x⁰ × x^–6.

What is the product of two consecutive even numbers, the difference of whose squares is 76?

Which of the following given value is greater than

If  and  then what is A × B?

What is the sum of first 20 terms of the following series?

1 × 2 + 2 × 3 + 3 × 4 + 4 × 5 +……..

What is the value of

x, y and z are distinct prime number where x < y < z. If x + y + z = 70, then what is the value of z?

How many numbers are there from 400 to 700 in which the digit 6 occurs exactly twice?

How many composite number are there from 53 to 97?

Which fraction among the following is the least?