Two coaching institutes and prepare students for an entrance examination
MATHEMATICS · Single correct · CBSE · Mathematics · Fractions in Disguise · Fractions in Disguise
Problem
Two coaching institutes X and Y prepare students for an entrance examination. 80\% of the students of X and 60\% of the students of Y qualify the examination. If the overall proportion of qualified students from both institutes taken together is 68\%, what proportion of the enrolled students belong to institute X?
(a) 0.60
(b) 0.32
(c) 0.40
(d) 0.68