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Idaya Joshua

· started a discussion

· 1 Months ago

explain (Question: 114059.0 )

how did you find the student indidual marks?

Question:
DIRECTIONS : Study the following table carefully and answer the questions that follow: 
The following table gives information about the marks scored by three students P, Q, and R in different subjects.

The total marks scored by student ‘R’ in Chemistry, Maths and Computers is what approximate percentage of the total marks scored by student ‘P’ in all subjects?
Options:
A) 25.72%
B) 35.52%
C) 37.73%
D) 35.05%
E) 39.62%
Solution:

Knowledge Expert

· commented

· 1 Months ago

Its so easy suppose i have to find P's, Q's and R's individual marks in english then first of all see the graph, its given that total marks obtained by P and Q together = 133 and its ratio also given 7:12.

So, P will get = {7/(7+12)}*133 = (7/19)*133 = 49

So, Q will get = 133-49 = 84

Total Marks of Q and R together from the table given is = 180

Q's mark we already know which is 84

so, R's mark = 180-84=96
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