Question

Average salary of 17 teachers is 45000, 3 teachers went out and average is dropped to 2500. What is the sum of salaries of 3 teachers?

Answer 1

Answer:

$\bold\red{Sum=Rs.170000}$

________________________

$\textbf{\underline{Given\::}}$

● Average salary of 17 teachers= 45000

● 3 teachers went out and average dropped to 2500.

$\textbf{\underline{To\:find\::}}$

● Sum of salaries of 3 teachers=?

________________________

$\textbf{\underline{\underline{Solution\::}}}$

Sum of salaries of 17 teachers:-

=>Rs.17 × 45000

=> Rs.765000

_________________________

After 3 teachers went out the average decreases to 2500.

So, average of (17-3) or, 14 teachers is = Rs.(450000 - 2500)

=>Rs. 42500

Sum of salaries of 14 teachers :-

=> Rs.14 × 42500

=>Rs. 595000

________________________

Sum of salaries of 3 teachers :-

=> Rs.(765000 - 595000)

=> Rs.170000

So, sum of salaries of 3 teachers =Rs.170000.

#Answerwithquality #BAL

Answer 2

AnswEr :

• Average Salary of 17 teachers is Rs. 45000
• 3 Teachers went out and, New Average dropped by Rs. 2500
• Find the Sum of Salaries of 3 Teachers who went out.

• Let's Head to the Question Now :

⋆ I N I T I A L ⠀S A L A R Y :

↠ Total Initial Salary of Teachers

↠ Average × No. of Teachers

↠ Rs. 45000 × 17

↠ Rs. 765,000

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⋆ N E W ⠀A V E R A G E :

↠ Average of Salaries after 3 teachers

↠ Old Average – Average Drop

↠ Rs. 45000 – Rs. 2500

↠ Rs. 42500

_______________________________

⋆ F I N A L ⠀S A L A R Y :

↠ Average of Left Teachers ( Final )

↠ Average × No. of Teachers

↠ Rs. 42500 × (17 – 3)

↠ Rs. 42500 × 14

↠ Rs. 595,000

━━━━━━━━━━━━━━━━━━━━━━━━

⋆ S U M ⠀O F ⠀S A L A R I E S :

↠ Sum of Salaries of Teachers went out

↠ Initial Salary – Final Salary

↠ Rs. 765,000 – Rs. 595,000

↠ Rs. 170,000

∴ Therefore, Sum of Salaries of Teachers who went out will be Rs. 170,000

#answerwithquality #BAL