#Learn Mathematics;2-2=00 Puzzle;can you solve this/puzzle/Reasoning/SSC

Directions : In the following questions, four alternatives are given for the Idiom/Phrase printed in bold in the sentence. Choose the alternative which best expresses the meaning of the Idiom/ Phrase. You have been trying to solve this puzzle for a long time, be careful so that you avoid barking up the wrong tree

Can You Solve This? 6div2(1+2)=

A problem in mathematics is given to 3 students whose chances of solving it are (1)/(2);(1)/(3);(1)/(4) .What is the probability that the problem is solved?