The mean salary for a group of $40$ females workers is $R s . 5, 200$ per month and that for a group of $60$ male workers is $R s . 6, 800$ per month. What is the combined salary?

6, 280

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6, 160

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6, 890

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6, 920

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Solution

The correct option is B $6, 160$
The mean salary of 40 females and 60 males are 5,200 and 6,800 rupees respectively. Therefore the total salary of 40 females and 60 males will be 5,200x40 and 6,800x60 rupees respectively. So the average salary of 40 females and 60 males will be
= ( 2.08,000 + 2,08,000 )/ ( 40+60)
= 616000 / 100
= 6,160

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The mean salary for a group of 40 females workers is Rs.5,200 per month and that for a group of 60 male workers is Rs.6,800 per month. What is the combined salary?

The mean salary for a group of $40$ females workers is $R s . 5, 200$ per month and that for a group of $60$ male workers is $R s . 6, 800$ per month. What is the combined salary?