Instructions

Study the following table carefully to answer these questions.
Percentage of marks obtained by six students in six subjects

Question 119

Approximately what is the overall percentage of marks obtained by Q in all the Subjects ?

Solution

Marks of Q in subjects :

A = $$\frac{55}{100} \times 60$$ = 33

B = $$\frac{70}{100} \times 40$$ = 28

C = $$\frac{67}{100} \times 80$$ = 53.6

D = $$\frac{74}{100} \times 50$$ = 37

E = $$\frac{88}{100} \times 120$$ = 105.6

F = $$\frac{78}{100} \times 75$$ = 58.5

=> Total marks = 33 + 28 + 53.6 + 37 + 105.6 + 58.5 = 315.7

Maximum marks = 60 + 40 + 80 + 50 + 120 + 75 = 425

=> Required % = $$\frac{315.7}{425} \times 100$$

= $$74.28 \% \approx 74 \%$$

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