Question

16. 72% of 25 students are good in Mathematics How many are not good in
Mathematics?
(1) 18
(2)7
(3) 15
(4)9​

Answer 1

Answer:

7

Step-by-step explanation:

NOTE: Percentage means out of 100

Total number of students = 25    (given)

Number of good students in mathematics  = 72% of 25  

= (72/100) x 25

= 72/4 =18

Number of students not good in mathematics  = 25 – 18 = 7

Hence, Number of students not good in mathematics  =7

Answer 2

Answer:

7

Step-by-step explanation:

100%-72%= 28%

28% of 25

28×25/100

= 7

so, 7 students are not good