Explanation

Step 1: Multiply the number of students in each class by their pass percentage

- Class 1: 10 students × 20% = 2 passed  

- Class 2: 20 students × 30% = 6 passed  

- Class 3: 30 students × 60% = 18 passed  

- Class 4: 40 students × 100% = 40 passed  

Step 2: Add total passed students and total students

- Total passed = 2 + 6 + 18 + 40 = 66  

- Total students = 10 + 20 + 30 + 40 = 100

Step 3: Calculate the overall percentage

Pass % = (66 / 100) × 100 = 66%

Explanation

Explanation

A number system where a number is represented by using only two digits (0 and 1) with a base 2 is called a binary number system.

For example, 10012is a binary number.

ND5-09-2023

Explanation

The possible subsets are ϕ,{0},{1},{0,1}.

ND5-07-2023

Explanation

Kamal is older than Jamal,

Jamal is older than Hussain,

and Hussain is older than Waqar

Kamal is the oldest

ND5-07-2023

Explanation

Acute angles measure less than 90 degrees.

Right angles measure 90 degrees.

Obtuse angles measure more than 90 degrees.

Explanation

"My mother is the sister of your brother."

If your brother has a sister, that sister is also your sister.

So:

My mother is your sister.

That means you are my uncle or aunt (depending on gender).

So, I am your nephew (assuming I'm male).

Explanation

Alien means غیر ملکی، اجنبی، بیگانہ

Native means مقامی

Explanation

Explanation

75.5 is an average of the first 150 natural numbers or positive integers

Sum of first 150 numbers

1+ 2 + 3 +4………………147 + 149 + 150 = 11325

Find average
11325/150 = 75.5