Maharashtra Class 9 Answered
A survey was conducted to know the hobby of 220 students of class 9th. Out of which 130 students informed about their hobby as rock climbing and 180 students informed about their hobby as sky watching. There are 110 students who follow both the hobbies. Then how many students do not have any of the hobbies? How many of them follow the hobby of rock climbing only? How many students follow the hobby of sky watching only?
Asked by himanshulanjewar24 | 23 Mar, 2019, 01:41: PM
Expert Answer
Venn diagram shown above describes the hobby of 220 students.
No. of Students have only sky watching = 180-110 = 70
No. of students have only Rock climbing = 130 - 110 = 20
No. of students do not have any hobby = 220 -[ 70+110+20] = 20
Answered by Thiyagarajan K | 23 Mar, 2019, 02:36: PM
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