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Study the following bar-diagram carefully and answer the questions given below it. Number of students attending Maths and Science classes in four different schools
Question 118
The respective ratio between the total number of students of Maths and Science in schools W and X is respectively
Solution
Students attending maths classes in school W = 60
Students attending science classes in school W = 80
=>Total students attending both classes in school W = 60+80 = 140
Students attending maths classes in school X = 120
Students attending science classes in school X = 100
=>Total students atending both classes in school X = 120+100 = 220
Required ratio = 140/220 = 7:11
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