my daughter read in class xth in CBSC pattern may kindly suggest the practice of math from Olampiad practice b

Question

my daughter read in class xth in CBSC pattern may kindly suggest the practice of math from Olampiad practice book. her practice is very poor, it needs improvement from practice book, kindly advise me

Answer 1

First get your basics clear. Its not CBSC. Its CBSE ( as in Central Board of Secondary Education).
Its not Olampiad its Olympiad.