Question

4. Marks of exam Telugu, Hindi, English

Telugu Hindi English

Anil 15 8 10

Vamsi 10 10 12

Antony 11 6 11

Find the Arithmetic mean of Telugu Hindi and English. ​

Answer 1

Answer:

1. Arithmetic mean of Telugu is 12.
2. Arithmetic mean of Hindi is 8.
3. Arithmetic mean of English is 11.

Step-by-step explanation:

Given that:

Marks of exam.

In Telugu,

• Anil got 15 marks.
• Vamsi got 10 marks.
• Antony got 11 marks.

In Hindi,

• Anil got 8 marks.
• Vamsi got 10 marks.
• Antony got 6 marks.

In English,

• Anil got 10 marks.
• Vamsi got 12 marks.
• Antony got 11 marks.

We know that:

• Arithmetic mean = Sum of marks/Total number of students

Finding the arithmetic mean of Telugu:

Arithmetic mean = (15 + 10 + 11)/3

Arithmetic mean = 36/3

Arithmetic mean = 12

∴ Arithmetic mean of Telugu is 12.

Finding the arithmetic mean of Hindi:

Arithmetic mean = (8 + 10 + 6)/3

Arithmetic mean = 24/3

Arithmetic mean = 8

∴ Arithmetic mean of Hindi is 8.

Finding the arithmetic mean of English:

Arithmetic mean = (10 + 12 + 11)/3

Arithmetic mean = 33/3

Arithmetic mean = 11

∴ Arithmetic mean of English is 11.

Answer 2

Answer:

Given :-

➲ In an exam :

• Anil get : 15 in Telegu, 8 in hindi, 10 in English
• Vamsi get : 10 in Telegu, 10 in hindi, 12 in English
• Antony get : 11 in Telegu, 6 in hindi, 11 in English

To Find :-

• What is the arithmetic mean of Telugu, Hindi and English.

Formula Used :-

$\clubsuit$ Arithmetic Mean Formula :

$\longmapsto \sf\boxed{\bold{\pink{Arithmetic\: Mean =\: \dfrac{Sum\: of\: Observations}{Total\: number\: of\: Observations}}}}$

Solution :-

${\small{\bold{\purple{\underline{\bigstar\: In\: case\: of\: Telegu\: Subject\: :-}}}}}$

$\mapsto$ Anil = 15 marks

$\mapsto$ Vamsi = 10 marks

$\mapsto$ Antony = 11 marks

${\small{\bold{\purple{\underline{\bigstar\: In\: case\: of\: Hindi\: Subject\: :-}}}}}$

$\mapsto$ Anil = 8 marks

$\mapsto$ Vamsi = 10 marks

$\mapsto$ Antony = 6 marks

${\small{\bold{\purple{\underline{\bigstar\: In\: case\: of\: English\: Subject\: :-}}}}}$

$\mapsto$ Anil = 10 marks

$\mapsto$ Vamsi = 12 marks

$\mapsto$ Antony = 11 marks

Now, we have to find the arithmetic mean of telegu, hindi and english :

$\dashrightarrow \sf\bold{\green{Arithmetic\: Mean\: of\: Telegu\: :-}}$

$\implies \sf Arithmetic\: mean\: of\: telegu =\: \dfrac{15 + 10 + 11}{3}$

$\implies \sf Arithmetic\: mean\: of\: telegu =\: \dfrac{\cancel{36}}{\cancel{3}}$

$\implies \sf Arithmetic\: mean\: of\: telegu =\: \dfrac{12}{1}$

$\implies \sf\bold{\red{Arithmetic\: mean\: of\: telegu =\: 12}}$

$\therefore$ The arithmetic mean of telegu is 12.

$\rule{150}{2}$

$\dashrightarrow \sf\bold{\green{Arithmetic\: Mean\: of\: Hindi\: :-}}$

$\implies \sf Arithmetic\: mean\: of\: hindi\: =\: \dfrac{8 + 10 + 6}{3}$

$\implies \sf Arithmetic\: mean\: of\: hindi =\: \dfrac{\cancel{24}}{\cancel{3}}$

$\implies \sf Arithmetic\: mean\: of\: hindi =\: \dfrac{8}{1}$

$\implies \sf\bold{\red{Arithmetic\: mean\: of\: hindi =\: 8}}$

$\therefore$ The arithmetic mean of hindi is 8 .

$\rule{150}{2}$

$\dashrightarrow \sf\bold{\green{Arithmetic\: mean\: of\: English\: :-}}$

$\implies \sf Arithmetic\: mean\: of\: english =\: \dfrac{10 + 12 + 11}{3}$

$\implies \sf Arithmetic\: mean\: of\: english =\: \dfrac{\cancel{33}}{\cancel{11}}$

$\implies \sf Arithmetic\: mean\: of\: english =\: \dfrac{11}{1}$

$\implies \sf\bold{\red{Arithmetic\: mean\: of\: english =\: 11}}$

$\therefore$ The arithmetic mean of english is 11.

$\rule{150}{2}$

#Learn more :

18. Find the mean of the 32 numbers, such that if the mean of 10 of them is 15 and the mean of 20 of them is 11. The last two numbers are 10.

Solution:

https://brainly.in/question/39510949