Verbal Reasoning :: Arithmetical Reasoning :: Venn Diagram

• Arithmetical Reasoning - Calculation Based Problems
• Arithmetical Reasoning - Data Based
• Arithmetical Reasoning - Problems on Ages
• Arithmetical Reasoning - Venn Diagram

What is the percentage of students who got distinction?

Answer:

Explanation:

Number of students who gotdistinction=(50+ 47 +42+12+ 11+ 13 + 15)= 190.

Required Percentage = $\left(\frac{190}{500}\times 100\right)$% = 38%

Out of a total of 120 musicians in a club,5% can play all the three instruments - guitar' violin and flute. It so happens that the number of musicians who can play any two and only two of the above instruments is 30. The number of musicians who can play the guitar alone is 40. What is the total number of those who can play violin alone or flute alone

Answer:

Explanation:

Let circles, P, Q and R represent the musicians who can play guitar, violin and flute respectively.

a+b+c+d+e+f+g=120

Number of musicians who can play all the three instruments = g=5% of 120 = 6

Number of musicians who can play any two and only two of the instruments = d +e+f = 30

Number of musicians who can play the guitar only = a = 40

Number of musicians who can play violin alone or flute only = b+c

=120-(a+d+e+f+g)=44

The number in Venn diagram indicates the number of persons reading the newspaper. The diagram is drawn after surveying 50 persons .In a population of 10000 , how many cab be expected to read at least two newspaper?

Answer:

Explanation:

Number of persons who read at least two newspapers = (12 + 8 + 5 +2) =27

Number of such persons per 10000 = 27/50 x 10000 = 5400

• Arithmetical Reasoning - Calculation Based Problems
• Arithmetical Reasoning - Data Based
• Arithmetical Reasoning - Problems on Ages
• Arithmetical Reasoning - Venn Diagram