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The average salary of a person for the months of february, march, april and may is Rs.12000. For the months of march, april, may and june is Rs.3000. If his salary for the month of June is Rs.3000 then what is his salary for the month of february ?

The average salary of a person for the months of february, march, april and may is Rs.12000. For the months of march, april, may and june is Rs.3000. If his salary for the month of June is Rs.3000 then what is his salary for the month of february ? Correct Answer 39000

Given

The average salary of a person for the months of february, march, april and may is Rs.12000. For the months of march, april, may and june is Rs.3000. If his salary for the month of June is Rs.8000.

Concept used

Average

Calculation

Sum of salary for feb, march, april and may 

⇒ 12000 × 4 = 48000    - - (i)

Sum of salary for march, april, may and june

⇒ 3000 × 4 = 12000      - - (ii)

Solving equation i and ii

Feb - June = 48000 - 12000

Feb - June = 36000

Salary of june = Rs.3000 (Given)

Feb = 36000 + 3000

Feb = Rs.39000

 

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