Question

72% of 25 students are good in mathematics . How many are not good in mathematics?

Answer 1

72% of 25 = 72/100 * 25

= 72/4

= 18

therefore, 18 students are good in maths but (25-18) 7 are not.

Answer 2

Step-by-step explanation:

no. of students good in maths =25×72/100

= 18 students

no. if students not good in maths = 25 - 18

= 7 students