Question
Which of the following is the strongest force in
nature? ÂSolution
The strong nuclear force is the strongest force in nature.  It holds the nuclei of atoms together, overcoming the repulsive electromagnetic force between positively charged protons.  It acts only at very short distances (within the nucleus).  It is responsible for binding quarks together in protons and neutrons.
- When is the expression 16x - 4x² - 48 greater than zero?
The difference between the value of the number increased by 20% and the value of the number decreased by 30% is 120. Find the number.
Sum of squares of three consecutive numbers is 1325. Find the sum of first and third number.
- A number is more than 21 times its reciprocal by 11/9. What is the number?
Which of the following is a Prime Number?
- Deepak’s monthly income is Rs. 55000. He spent Rs. 25000 less than what he saved. Calculate the percentage of income he spent.
- 7643529 is divisible by which of the following numbers?
I. 3
II. 11 A two-digit number is such that the sum of its digits is 10. If 36 is added to the number, the digits interchange their places. Find the number.
- For which values of x is the expression 25x - 5x² - 100 positive?
What will be the remainder which 5382 + 53 is divided by 54?
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