A group of friends went to South Africa. On the first day 60% went to see cricket match and 40% went for jungle safari, where as 20% stay in resort. Which of the following conclusion(s) can be drawn from the above data? a) 20% friends went to see cricket match as well as for safari. b) 40% friends went for only cricket match. Select the correct answer using the code given below ∶
A group of friends went to South Africa. On the first day 60% went to see cricket match and 40% went for jungle safari, where as 20% stay in resort. Which of the following conclusion(s) can be drawn from the above data? a) 20% friends went to see cricket match as well as for safari. b) 40% friends went for only cricket match. Select the correct answer using the code given below ∶ Correct Answer Both a and b
Given∶
60% went to see cricket match.
40% went for jungle safari.
20% stay in resort.
Formula Used∶
Basic of percentage and sets.
Calculation∶
Friends who stay in resort = 20%
Member who went for either cricket match or jungle safari or both = 100% - 20% = 80%
n(Cricket match) = n(A) = 60%
n(Jungle safari) = n(B) = 40%
So, n(A∪B) = 80%
and n(A∩B) = 60% + 40% - 80% = 20%
So, statement a is correct.
Friends who went for only cricket match = n(A) - n(A∩B)
⇒ 60% - 20% =
40%
So, statement b is correct.
∴ Statement a and b are correct so option 3 is correct.