Question

66 children of a class went on a picnic and 12% stayed back in school. How many children are there in this class?*​

Answer 1

Answer:

If 66 students went to picnic and 12% student stayed back in school , then ,

Percentage of student went to picnic =(100-12)%

= 88%

now, 66 student=88%

this means , 1% = 3/4

LET TOTAL NUMBER OF STUDENT IN CLASS BE x

now, x - 12% = 66

x = 66 + 12×3/4

= 66 + 9

= 75

$verification$

88% of 75 = 88/100 ×75

= 66

, here is your answer...

Step-by-step explanation:

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