Haryana Police Constable Model Paper 9

Given:
Candidate failed in Chemistry $=23\%$
Candidate failed in Physics $=34\%$
Candidate failed in both subject $=6\%$
Calculation:
Candidate failed in Chemistry $=\left(23-6\right)\%=17\%$
Candidate failed in Physics $=\left(34-6\right)\%=28\%$
Candidate failed in both $=6\%$
∴ Total candidate failed in exam $=\left(17+28+6\right)=51\%$
∴ Percentage of passed students in the exam $=\left(100-51\right)\%=49\%$