571. The ratio of students who passed in Bengali, to the students who passed in History is

1. 1. 1 : 2

   
   
   

   2. 2 : 1

   
   
   

   3. 3 : 4

   
   
   

   4. 3 : 5

   
   
   

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1. View Hint View Answer Discuss in Forum

   Required ratio = 144 : 72 = 2 : 1

   Correct Option: B

   Required ratio = 144 : 72 = 2 : 1

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572. Which two clubs have the enrolment in the ratio of 2 : 1?

1. 1. Eco club, HRD club

   
   
   

   2. Eco club, N.C.C.

   
   
   

   3. HRD club, Eco club

   
   
   

   4. Debating club, Eco club

   
   
   

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1. View Hint View Answer Discuss in Forum

   Eco-club: Human resource development club = 22 : 11 = 2 : 1

   Correct Option: A

   Eco-club: Human resource development club = 22 : 11 = 2 : 1

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573. What is the ratio of number of students enrolled in Scout and Redcross activities together to those enrolled in Debating Club activities?

1. 1. 3 : 1

   
   
   

   2. 4 : 1

   
   
   

   3. 1 : 4

   
   
   

   4. 1 : 3

   
   
   

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1. View Hint View Answer Discuss in Forum

   Required ratio = (18 + 21) : 13 = 39 : 13 = 3 : 1

   Correct Option: A

   Required ratio = (18 + 21) : 13 = 39 : 13 = 3 : 1

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574. The number of students enrolled in Eco-club is what per cent of those enrolled in Redcross activities?

1. 1. 94.24%

   
   
   

   2. 95.45%

   
   
   

   3. 82.45%

   
   
   

   4. 104.76%

   
   
   

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1. View Hint View Answer Discuss in Forum

   Required per cent
   

   =	22	× 100 = 104.76 %
   	21

   Correct Option: D

   Required per cent
   

   =	22	× 100 = 104.76 %
   	21

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575. What is the total number of students enrolled in Debating Club and HRD Club?

1. 1. 144

   
   
   

   2. 216

   
   
   

   3. 288

   
   
   

   4. 72

   
   
   

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1. View Hint View Answer Discuss in Forum

   Total students in HRD & Debating club
   

   = 1200 ×	(13 + 11)	= 288
   	100

   Correct Option: C

   Total students in HRD & Debating club
   

   = 1200 ×	(13 + 11)	= 288
   	100

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