Question

72% of 25 students are good in matgematics. how many students are not good in mathemtics​

Answer 1

Answer:

Step-by-step explanation:

Total no. of students = 25

  "     no. of      "       good at Maths = 72% of 25

                                                          =  $\frac{72}{100}$ * 25  = 18.

∴ No. of good mathematician students = 18

So, No of not good     "            students = ( 25 - 18) = 7 students