72% of 25 students are good in maths how many are not good
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no. of students not good in maths ( in %) = 100%-72%
=28%
In number = 28% of 25
= 28/100×25
=7
total student not good in maths = 7
=28%
In number = 28% of 25
= 28/100×25
=7
total student not good in maths = 7
sanii1:
you had solved incomplete
its answer is 7
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Ans.
72% of 25 students = (72 × 25) ÷ 100 = 18.
So 18 students are good in maths.
Thus (25-18) = 7 students are not good in maths.
72% of 25 students = (72 × 25) ÷ 100 = 18.
So 18 students are good in maths.
Thus (25-18) = 7 students are not good in maths.
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