RR ACADEMY FOR SSC AND BANK: Maths Questions for SSC , BANK and other Competitv...

RR ACADEMY FOR SSC AND BANK: Maths Questions for SSC , BANK and other Competitv...: Q1. The mean marks of 10 boys in a class is 70%, whereas the mean marks of 15 girls is 60%. The mean marks of all the 25 students is:  (...