Explanation

• The product of two rational numbers is always rational because the product of two fractions (or integers) is another fraction (or integer).
• Rational numbers are closed under multiplication, meaning multiplying two rationals results in another rational number.

Last verified on 24-08-2026

Explanation

• The symbol "√" represents the square root.
• It is called a radical.
• It is used in mathematics to indicate the root of a number.

Last verified on 09-07-2026

Explanation

To find the least common multiple (LCM) of 6 and 8, we need to list the multiples of each number:

Multiples of 6: 6, 12, 18, 24, ...

Multiples of 8: 8, 16, 24, ...

The smallest number that appears in both lists is 24, so the LCM of 6 and 8 is: 24

Last verified on 09-07-2026

Explanation

When two negative numbers are multiplied, we get a Positive number.

Example: (-2) × (-3) = 6

Last verified on 24-08-2026

Explanation

First find cost of 1 book:  

Cost of 1 book = 456 / 114 = Rs. 4

Now cost of 60 books:  

Cost of 60 books = 60 × 4 = Rs. 240

Last verified on 24-08-2026