Math Questions for SSC CHSL and RRB NTPC EXAM Posted by January 12th, 2017 10:51 am Leave a comment on Math Questions for SSC CHSL and RRB NTPC EXAM Q12. If x + y = 90° and sin x : sin y = √3 : 1, then what is x : y equal to? (a) 1 : 1 (b) 1 : 2 (c) 2 : 1 (d) 3 : 2