Question

A survey shows that 63% of the indians like tea whereas 76% like coffee. If x% of the indians like both tea and coffee, then

Answer 1

61% like both as out of 200%

200%-(63%+76%)

200%-139%

61%

Answer 2

Given :  63% of the indians like tea whereas 76% like coffee

To find : x% of the indians like both tea and coffee

Solution:

here ,

the maximum number of people like both the items is 63%

from the venn diagram

a+b = 100

a+2b

63+76 = 139

then

b = 139 - 100

b = 39

hence , the value of x is 39%

39% of the  indians like both tea and coffee

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