PPSC Personal Staff Officer (BS-17) S&GAD 2020, Computer MCQs, Computer Short keys MCQs, PPSC Solved Past Papers MCQsTo apply center alignment, we can press?A. Ctrl + S B. Ctrl + C C. Ctrl + C + A D. Ctrl + E If a shopkeper earns 30% profit on a thing. if its price rises 25%. How much profit he will take?Electromagnatic wave was discovered by Heinrich Rudolf Hertz. He was ____?
