Directions: Study the following information carefully and answer the questions given beside:
A survey of a group of 1250 students is conducted to know about their likeness of sports. 68% students like Football, 69.6% like Cricket and 64% like Badminton. 14.4% of them like only Football, 16.8% like only Cricket and 8.8% like only Badminton. Now, answer the following questions based on this information.
The total number of people who like only one sport = 180 + 210 + 110 = 500
∴ Reqd% =
500
× 100 = 40%
1250
Common Explanation:
As per the given information, we get
No. of students who like football = 68% of 1250 = 850
No. of students who like Cricket = 69.6% of 1250 = 870
And, No. of students who like Badminton = 64% of 1250 = 800
From the further information, we get
No. of students who like only Football = 14.4% of 1250 = 180
No. of students who like only Cricket = 16.8% of 1250 = 210
No. of students who like only Badminton = 8.8% of 1250 = 110
Suppose, x students like both Football and Cricket, y students like both Football and Badminton, z students like Badminton and Cricket and k students like all three games.
x + y + k + 180 = 850
or, x + y + k = 670 ...(i)
Similarly,
x + z + k = 660 ...(ii)
y + z + k = 690 ...(iii)
And, x + y + z + k = (1250 – 180 + 210 + 110)
x + y + z + k = 750 ....(iv)
By solving the equations (i), (ii), (iii) and (iv), we get
The total no. of students who like any two sports = x + y + z = 60 + 90 + 80 = 230
Common Explanation:
As per the given information, we get
No. of students who like football = 68% of 1250 = 850
No. of students who like Cricket = 69.6% of 1250 = 870
And, No. of students who like Badminton = 64% of 1250 = 800
From the further information, we get
No. of students who like only Football = 14.4% of 1250 = 180
No. of students who like only Cricket = 16.8% of 1250 = 210
No. of students who like only Badminton = 8.8% of 1250 = 110
Suppose, x students like both Football and Cricket, y students like both Football and Badminton, z students like Badminton and Cricket and k students like all three games.
x + y + k + 180 = 850
or, x + y + k = 670 ...(i)
Similarly,
x + z + k = 660 ...(ii)
y + z + k = 690 ...(iii)
And, x + y + z + k = (1250 – 180 + 210 + 110)
x + y + z + k = 750 ....(iv)
By solving the equations (i), (ii), (iii) and (iv), we get
The total number of students who like Footaball and Badminton = 90
And the total number of students = 1250
Reqd % =
90
× 100 = 7.2%
1250
Common Explanation:
As per the given information, we get
No. of students who like football = 68% of 1250 = 850
No. of students who like Cricket = 69.6% of 1250 = 870
And, No. of students who like Badminton = 64% of 1250 = 800
From the further information, we get
No. of students who like only Football = 14.4% of 1250 = 180
No. of students who like only Cricket = 16.8% of 1250 = 210
No. of students who like only Badminton = 8.8% of 1250 = 110
Suppose, x students like both Football and Cricket, y students like both Football and Badminton, z students like Badminton and Cricket and k students like all three games.
x + y + k + 180 = 850
or, x + y + k = 670 ...(i)
Similarly,
x + z + k = 660 ...(ii)
y + z + k = 690 ...(iii)
And, x + y + z + k = (1250 – 180 + 210 + 110)
x + y + z + k = 750 ....(iv)
By solving the equations (i), (ii), (iii) and (iv), we get
We can clearly get from the common explanation that, there are 520 students (representing k) who like all the three sports.
Common Explanation:
As per the given information, we get
No. of students who like football = 68% of 1250 = 850
No. of students who like Cricket = 69.6% of 1250 = 870
And, No. of students who like Badminton = 64% of 1250 = 800
From the further information, we get
No. of students who like only Football = 14.4% of 1250 = 180
No. of students who like only Cricket = 16.8% of 1250 = 210
No. of students who like only Badminton = 8.8% of 1250 = 110
Suppose, x students like both Football and Cricket, y students like both Football and Badminton, z students like Badminton and Cricket and k students like all three games.
x + y + k + 180 = 850
or, x + y + k = 670 ...(i)
Similarly,
x + z + k = 660 ...(ii)
y + z + k = 690 ...(iii)
And, x + y + z + k = (1250 – 180 + 210 + 110)
x + y + z + k = 750 ....(iv)
By solving the equations (i), (ii), (iii) and (iv), we get
Total number of students who like only Football and Cricket = 60
And the total number students = 1250
∴ Reqd% =
60
× 100 = 4.8%
1250
Common Explanation:
As per the given information, we get
No. of students who like football = 68% of 1250 = 850
No. of students who like Cricket = 69.6% of 1250 = 870
And, No. of students who like Badminton = 64% of 1250 = 800
From the further information, we get
No. of students who like only Football = 14.4% of 1250 = 180
No. of students who like only Cricket = 16.8% of 1250 = 210
No. of students who like only Badminton = 8.8% of 1250 = 110
Suppose, x students like both Football and Cricket, y students like both Football and Badminton, z students like Badminton and Cricket and k students like all three games.
x + y + k + 180 = 850
or, x + y + k = 670 ...(i)
Similarly,
x + z + k = 660 ...(ii)
y + z + k = 690 ...(iii)
And, x + y + z + k = (1250 – 180 + 210 + 110)
x + y + z + k = 750 ....(iv)
By solving the equations (i), (ii), (iii) and (iv), we get
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