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Following table shows the grades obtained by the students of four sections viz. A, B, C and D of class Tenth of Ram Manohar Boys School. Answer the following questions using the information provided.    Grades Sections First Second Third A 12 18 25 B 10 23 17 C 8 22 15 D 14 24 12 If a student of class tenth of the school is randomly selected, what are the chances that he belongs to section B and obtained First grade?

Following table shows the grades obtained by the students of four sections viz. A, B, C and D of class Tenth of Ram Manohar Boys School. Answer the following questions using the information provided.    Grades Sections First Second Third A 12 18 25 B 10 23 17 C 8 22 15 D 14 24 12 If a student of class tenth of the school is randomly selected, what are the chances that he belongs to section B and obtained First grade? Correct Answer 5%

Given:

Total students in section B are 50.

Calculation:

There are total 4 sections,

Chance of getting section B from all 4 sections is 1/4.

Total number of students in section B,

⇒ 10 + 23 + 17 = 50

In which 10 students obtained first grade

Chances of picking those 10 students out of 50 students is,

⇒ 10/50 = 1/5

Overall chances in percent,

⇒ 1/4 × 1/5 × 100

⇒ 5 %

∴ Option 2 is correct.

Related Questions

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