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The marks of Siddharth in 5 subject are 78, 70, 68, 89, and 90 respectively and the average marks of 6 subject scored by Siddharth is 82, then what is the marks scored in 6th subject by Siddharth?

The marks of Siddharth in 5 subject are 78, 70, 68, 89, and 90 respectively and the average marks of 6 subject scored by Siddharth is 82, then what is the marks scored in 6th subject by Siddharth? Correct Answer 97

Given

Average marks of 6 subject = 82 

Formula Used 

Average = sum of observation/no. of observation 

Calculation

let the marks in 6th subject scored by Siddharth is x 

⇒ Total marks in 5 subject = 78 + 70 + 68 + 89 + 90 = 395 

⇒ total marks in 6 subject = 82 × 6 = 492

⇒ 395 + x = 492 

⇒ x = 97

∴ Siddharth's marks in 6th subject is 97 

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