Question

16. A
A sur
WOS

surney
conducted to know the hobby of
420
students of class ix. Out of 이
which 130 students
have their hobby as rock climbing and 180 students
have their hobby as sky watching. There
g110
students who follow both the holilues. Then how
many
do not have hobby at all? How
? many
the hobby of rock climbing alone? How many have
hobby of sky matching alone ?
many have​

Answer 1

Answer:

dance

Explanation:

see I can not tell