Percentage is per-cent means parts per hundred(1/100) x/100 means x% To convert percentage into fraction then divide it by 100. x%= x/100 Questions 1.If 70% of the students in a school are girls and the number of boys is 453. Find the number of girls? ( Fireman Driver NCA 2020 ) 30% of students will be boys 30/100 * X = 453 X= 1510 Girls =1510- 453 = 1057 2018 1.If we add 20 with 20% of a number we get the same number. Which is that number ? ( Caretaker Male 2018 ) 20+(20/100)n=n 2000+20n=100n 80n=2000 n=25 2.The fractional form of 1/2 of 1% is ( Beat Forest Officer 2018 ) ½*(1/100)=1/200 3.ഏത് സംഖ്യയുടെ 15% ആണ് 900 ? ( WOMEN POLICE CONSTABLE NCA 2018 ) N x 15/100 = 900 N=90000/15= 6000 4.1250 ന്റെ 50% ന്റെ 40% എത്ര? ( Security Guard- Government Secretariat 2018 ) 1250 x (50/100) x(40/100) 250 5.Find 25% of 25% ( Caretaker Male 2018 ) (25/100) x (25/100) = 625/10000= 0.0625 6.743 + 958 = ? % of 5670 ( Caretaker Male 2018 ) ...
Kerala Psc Examination Previous Questions and Notes