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In an Examination, Kavita Scored 120 Out of 150 in Maths, 136 Out of 200 in English and 108 Out of 150 in Science. Find Her Percentage Score in Each Subject and Also on the Whole (Aggregate). - Mathematics

Sum

In an examination, Kavita scored 120 out of 150 in Maths, 136 out of 200 in English and 108 out of 150 in Science. Find her percentage score in each subject and also on the whole (aggregate).

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Solution

In Maths percentage = `(120)/(150) xx 100`

= `(4)/(5)`xx 100 = 80%

In English percentage
= `(136)/(200) xx 100`

= `(136)/(2)`
= 68%

In Science percentage
= `(108)/(150)xx 100`

= `(108 xx 2)/(3)`
 = 72%

Total number scored = 120 + 136 + 108  = 364

Maximum marks = 150 + 200 + 150 = 500

∴ Overall % = `(364)/(500) xx 100`  = `(364)/(5)`  = 72.8%

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APPEARS IN

Selina Concise Mathematics Class 8 ICSE
Chapter 7 Percent and Percentage
Exercise 7 (C) | Q 8 | Page 86
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