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In a certain year the average monthly salary of a person is 5000 rupees.  If for the first 7 months the average salary is 5300 and for the last 6 months, the average salary is 4600 rupees. Find the income of the person in 7th month.
  • a)
    3700
  • b)
    4700
  • c)
    5700
  • d)
    can’t be determined
  • e)
    None of these
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
In a certain year the average monthly salary of a person is 5000 rupee...
To find the income of the person in the 7th month, we need to calculate the total income for the year and then divide it by the number of months.

For the first 7 months, the average salary is 5300 rupees, so the total income for these months is 5300 * 7 = 37,100 rupees.

For the last 6 months, the average salary is 4600 rupees, so the total income for these months is 4600 * 6 = 27,600 rupees.

The total income for the year is 37,100 + 27,600 = 64,700 rupees.

Since the average monthly salary for the year is 5000 rupees, we can divide the total income by the number of months to find the income in the 7th month: 64,700 / 12 = 5391.67 rupees.

Therefore, the income of the person in the 7th month is approximately 5391.67 rupees.
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Community Answer
In a certain year the average monthly salary of a person is 5000 rupee...
Answer – b) 4700 Explanation : Let the income of seventh month is A, then 12*5000 = 5300*7 + 5300*6 – A
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In a certain year the average monthly salary of a person is 5000 rupees. If for the first 7 months the average salary is 5300 and for the last 6 months, the average salary is 4600 rupees. Find the income of the person in 7th month.a)3700b)4700c)5700d)can’t be determinede)None of theseCorrect answer is option 'B'. Can you explain this answer?
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