Total candidates = $1000$ Men = $600$ Women = $400$

Men clearing qualifying test = $70\%$ of $600$ = $420$ Women clearing qualifying test = $75\%$ of $400$ = $300$

Men succeeding final test = $80\%$ of $420$ = $336$ Women succeeding final test = $70\%$ of $300$ = $210$

Total successful candidates = $336$ (men) + $210$ (women) = $546$ Overall success rate = $(\frac{546}{1000}) \times 100 = 54.6\%$

Success rate for men = $(\frac{336}{600}) \times 100 = 56\%$ Success rate for women = $(\frac{210}{400}) \times 100 = 52.5\%$

More men cleared the exam than women.