Explanation

To find the average weight of the 11 students, we first need to calculate the sum of their weights and then divide by the total number of students.

Here are the weights of the students:

46 kg, 45.5 kg, 49 kg, 46.5 kg, 50 kg, 47 kg, 48 kg, 47.5 kg, 47.5 kg

Let's find the sum:

46+45.5+49+46.5+50+47+48+47.5+47.5

Summing these:

46+45.5=91.5

91.5+49=140.5

140.5+46.5=187

187+50=237

237+47=284

284+48=332

332+47.5=379.5

379.5+47.5=427

The sum of all weights is 427 kg.

Now, divide this sum by the number of students (11):

Average weight = 427 / 11 ≈ 38.82

It looks like there was a miscalculation. The correct calculation for average weight should be:

Average weight = 427/ 9 = 47.27

So, the correct average weight is 47.27 kg.

ND5-07-2023

Explanation

6/4 + 2.5 = 0

= 1.5 + 2.5

=  4

ND5-07-2023

Explanation

The only number whose square is equal to its cube is 1. 1² = 1. 1³ = 1.

Where the result '1' is a natural number.

ND5-07-2023

Explanation

A binary number is a number expressed in the base-2 numeral system or binary numeral system,

a method of mathematical expression that uses only two symbols: typically "0" and "1". 

ND5-07-2023

Explanation

If the sum of the digits of a number is divisible by 3, then the number is also divisible by 3.

Here, 9+9+6=24 is multiple of 3.

So, 996 is the largest number divisible by 3

ND5-07-2023

Explanation

Area = (9 x 12) : 2 = 54 square unit

ND5-07-2023

Explanation

Let the two  numbers be x and x+66.

Since the LCM is 360, there must be 5,2 and 3 as the prime factors of the two numbers.

So, one pair is 24 & 90, because 90−24=66.

Also, 24=2×2×2×3

90=2×3×3×5

∴ LCM=2×2×2×3×3×5=360.

So, the numbers are 24 and 90.

ND5-07-2023

Explanation

The teacher, Professor, Principle is a person who helps students to acquire knowledge, competence, or virtue, via the practice of teaching. They all belong to same profession

but a Student is a person who is studying at a university or other place of higher education.

So the "correct answer" is " student"  because is different from others in the following collection

ND5-07-2023

Explanation

A is the mother of x.

so y mother is also A because x and y are two brothers.

Then B is A's brother.

means mother A's brother is the uncle of her son x and y.

ND5-07-2023

Explanation

The pattern in both I and II is + 11.

So, missing term = 43 + 11 = 54.

ND5-07-2023