# A candidate obtains 46% marks in English, 67% in mathematics, 53% in Hindi, 72 % in History and 58% in Economics. It is agreed to give triple weights to marks in English and double weights to marks in Mathematics as compared to other subjects. Calculate weighted mean.​

Dear Student

Let us assume that the weight of other subjects , that is , hindi , history and economics is 1 . Hence weight for english = $1×3=3$ and weight for mathematics = $1×2=2$
 Subject Marks Obtained(X) Weight(W) WX English  Maths Hindi History Economics 46 67 53 72 58 3 2 1 1 1 138 134 53 72 58 TOTAL $\sum _{}^{}W$ = 8 $\sum _{}WX=455$

Weighted Arithmetic Mean =

Regards .

• 1
Weighted mean = (46*3)+(67*3)+72+58+53/8
=455/8=56. 875
• 1
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