17 votes 17 votes There are $3$ red socks, $4$ green socks and $3$ blue socks.You choose $2$ socks. The probability that they are of the same colour is $\dfrac{1}{5}$ $\dfrac{7}{30}$ $\dfrac{1}{4}$ $\dfrac{4}{15}$ Quantitative Aptitude gatecse-2017-set2 quantitative-aptitude probability + – Arjun asked Feb 14, 2017 edited Dec 21, 2017 by pavan singh Arjun 8.9k views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
2 votes 2 votes There are 3 red socks, 4 green socks and 3 blue socks. You choose 2 socks. The probability that they are of the same colour is 1/5 7/30 1/4 4/15 ans: total = 10 sockes , 3C2+4C2+3C2= 12 and out of 10 = 10C2=45 ,so probability = 12/45= 4/15 akankshadewangan24 answered May 9, 2017 akankshadewangan24 comment Share Follow See all 0 reply Please log in or register to add a comment.
0 votes 0 votes Option D 4/15 tvkkk answered Feb 14, 2017 tvkkk comment Share Follow See all 0 reply Please log in or register to add a comment.
0 votes 0 votes D is the right answer. mohit chawla answered Feb 14, 2017 mohit chawla comment Share Follow See all 0 reply Please log in or register to add a comment.