SSC CGL Tier II 12 Jan 2017 Paper 1

Question : 32 of 100

Marks: +1, -0

The average monthly salary of all the employees in a factory is Rs. 8840. If the average salary of all the officers is Rs. 15000 and that of the remaining employees is Rs. 8000, then what is the percentage of the officers among the employees?

10%
12%
$8 1 /3 %$
11%

Validate

Solution:

(2) Number of officers = x.
Number of remaining employees = y.
According to the question,
8840 (x + y) = 15000x + 8000y
⇒ 8840x + 8840y = 15000x + 8000y
⇒ 15000x – 8840x = 8840y – 8000y
⇒ 6160x = 840y

⇒{x}/{y}= {840}/{6160}= {84}/{616}= {3}/{22}

∴

Required per cent

= {3}/{25}×100=12 \%

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