22) Rahul, a Math Teacher, arranged three groups of 120,90 and 60 students for the math exposition. He arranged the same number of students in each row. What was the number of students he arranged in each row? Do you think conducting expositions will improve your knowledge of education?
Answers
Answer:
Step-by-step explanation:
Given information
Sanjit scored in a test the following marks in six subjects
\bf \red \to \: 40 , 50 , 46, 60, 88, 72→40,50,46,60,88,72
What we have to calculate
We have to find mean of the given data
How we solve this question
We add all given numbers
Then divide by how many numbers they are
Finding mean of Sanjit test marks
\begin{gathered} \\ \\ \bf \to \underline{ \boxed{ Formula \: of \: Mean = \dfrac{Sum \: o f \: Observation}{Total \: numbers \: of \: Observations}}} \\ \\ \end{gathered}→FormulaofMean=TotalnumbersofObservationsSumofObservation
Submitting value
\begin{gathered} \\ \sf: \to \: \: \: Mean = \frac{40 , 50 , 46, 60, 88, 72}{6} \\ \\ \end{gathered}:→Mean=640,50,46,60,88,72
On adding
\begin{gathered} \\ \sf: \to \: \: \: Mean = \frac{356}{6} \\ \\ \end{gathered}:→Mean=6356
Dividing 356 by 6
\begin{gathered} \\ \large\sf: \to \: \underline{ \boxed{ \bf \: \: Mean = 56.33 }} \red \bigstar\\ \\ \end{gathered}:→Mean=56.33★