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In a college, 40% of the students were a...

In a college, 40% of the students were allotted group A, 75% of the remaining were given group B and the remaining 12 students. were given group C. Then the number of students who applied for the group is

A

A. 92

B

B. 100

C

C. 60

D

D. 80

Text Solution

Verified by Experts

The correct Answer is:
D
माना कि ग्रुपों के लिए कुल x छात्र ने आवेदन किए
`therefore` ग्रुप A के छात्रों की संख्या = `(x xx 40)/100 = (40 x)/100`
शेष छात्र = `(60x)/(100)`
ग्रुप B के छात्रों की संख्या = `(60 x)/100 xx 75/100`
`= (45 x)/(100)`
`therefore` ग्रुप C के छात्रों की संख्या
`x = (40 x)/(100) - (45x)/100`
`implies 12 = (15x)/(100)`
`implies x = (1200)/(15) = 80`
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