Explanation

According to BODMAS, brackets are solved first. So, the expression inside the brackets 

(3+2) will be solved first before proceeding with multiplication or addition.

Explanation

21 + 21 = 42

42 + 21= 63

Explanation

Part of work completed by Hamza in a day = 1/15 Part of work completed by Aslam in a day = 1/12 Part of work completed by them in a day = (1/15)+(1/12) = 3/20 Part of work completed by them in 4 days = (3/20)*4 = 3/5 Fraction of work left

= 1-(3/5)
= 2/5

Explanation

Given:

1/4 (3 4/4 + 4 6/8 + 7 3/12)

Simplify each term:

3 4/4 = 3 + 1 = 4

4 6/8 = 4 + 3/4

7 3/12 = 7 + 1/4

Add the terms:

= 1/4 (4 + 4 + 3/4 + 7 + 1/4)

= 1/4 (15 + 3/4 + 1/4)

= 1/4 (15 + 1)

= 1/4 × 16

= 4

Explanation

2880 = 2⁶ × 3² × 5.

To make it a perfect square, we need to divide by 5 because it's the only prime factor with an odd exponent.

Explanation

A relation from A to B is defined as a subset of A × B (the Cartesian product).

So, any subset of A × B is called a relation from A to B.

Explanation

Explanation

To find the range from a set of data, subtract the smallest value from the largest value.

Given data:

85, 87, 90, 92, 95

Smallest value: 85

Largest value: 95

Range=Largest value−Smallest value

Range=95−85

Range=10

So, the range of the data set is 10.

Explanation

Explanation

848106/53=16002