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Arithmetic
Average salary of 17 teachers is 45000.3 teachers left and the average salary dropped by 2500.What is the sum of salaries of 3 teachers who left?
Read Solution (Total 14)
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- Total Initial Salary : 17*45000 = 765000
Average Salary After removal of 3 Teachers = 45000-2500 = 42500
Total Final Salary : 14*42500 = 595000
Sum of Salaries of 3 teachers who left : 765000 - 595000 = 170000 - 11 years agoHelpfull: Yes(88) No(2)
- let x be the sum of salary
given x/17=45000
x=765000
if 3 left
2500 will be dropped from avg
45000-2500=42500
new avg will be
x/14=42500
x=595000
prev avg - new avg=765000-595000=170000 - 11 years agoHelpfull: Yes(12) No(0)
- 765000-595000=170000
- 11 years agoHelpfull: Yes(4) No(2)
- (17*45000)-((45000-2500)*14=170000
- 11 years agoHelpfull: Yes(3) No(0)
- 170000
sum of the total 17 teachers sal=765000
sum of the 14 teachers sal =595000
rem 3 teachers sal=765000-595000=170000 - 11 years agoHelpfull: Yes(3) No(0)
- Sum(17)=45000*17-- 1
Sum(14)=42500*14--2
Just Subtract the s(17) and s(14)
S(17)-S(14)=170000 - 11 years agoHelpfull: Yes(2) No(0)
- 17*45000-14*42500=170000
- 11 years agoHelpfull: Yes(2) No(0)
- summation of sal. of 17 teach =x
summation of sal. of 14 teach =y
x/17=45000 therfore,x=765000
y/14=2500 therefore ,y=35000
ans=765000-35000 =730000 - 11 years agoHelpfull: Yes(0) No(5)
- total initial salary=17*45000=765000
avg salary after removing 3 teachers=45000-2500=42500
new total salary=14*42500=605000
sum of salary of 3 teachers=765000-605000=160000 - 11 years agoHelpfull: Yes(0) No(9)
- answer= 28333.33.
(45000*17+3*x)/20=42500.
- 11 years agoHelpfull: Yes(0) No(4)
- 765000-595000=170000
- 11 years agoHelpfull: Yes(0) No(0)
- Total Initial Salary : 17*45000 = 765000
Average Salary After removal of 3 Teachers = 45000-2500 = 42500
Total Final Salary : 14*42500 = 595000
Sum of Salaries of 3 teachers who left : 765000 - 595000 = 170000 - 10 years agoHelpfull: Yes(0) No(0)
- 17*4500=()-2500=14*()=170000
- 8 years agoHelpfull: Yes(0) No(0)
- Avg salary of 17 teachers= 17*45000 = 7,65,000
Avg salary after removal of three Teachers = 45000-2500 = 42,500
Total Final Salary = 14*42500 = 5,95,000
Subtract these values ---> 765000 - 595000 = 1,70,000 - 10 Months agoHelpfull: Yes(0) No(0)
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