A boy scored 60 out of 75 in physics. 60 out of 90 in science and 80 out of 100 in mathematics find the boys score as the percentage in (1) science and all three subjects (I.e on the whole)
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boy scored in physics =60/75
Or, 60/75*100%
or, 80%
He scored in science =60/90
Or, 60/90*100%
Or, 66.666
He scored in maths=80/100
80/100*100%
Or, 80%
Sum of the percentage of all three subject=80% +66.666% +80% =226.666%
Percentage of science out of all three subjects = 66.666/226.666*100%
Or, 60/75*100%
or, 80%
He scored in science =60/90
Or, 60/90*100%
Or, 66.666
He scored in maths=80/100
80/100*100%
Or, 80%
Sum of the percentage of all three subject=80% +66.666% +80% =226.666%
Percentage of science out of all three subjects = 66.666/226.666*100%
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