During his entire school life John rsquo s average marks in science was 80 and his average marks in ...........

Quantitative Aptitude (CHSL) Average

During his entire school life, John’s average marks in science was 80% and his average marks in mathematics was 90%. If his combined average marks in science and mathematics was 84%, while the total marks obtained by him in science was 54,000, what was John’s total marks obtained in mathematics?

This questions was previously asked in

SSC CHSL 2nd June 2022 Shift-3

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90000

81000

36000

60000

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Explanation:

Correct option:3

Solution:

Average marks in science = 80%
Average marks in mathematics = 90%
Whole average = 84%
Marks Obtained in science were 54,000.
Concept used: Concept of Allegation.

The ratio of marks in Science and Mathematics is 3 : 2.
According to the question: Let the ratio be 3x : 2x.
The value of 3x is 54,000.
3x = 54000
x = 18000
The value of 2x is 2 x 18000= 36000

Hence the Correct Answer is 36,000.