PERCENTAGE & RATIO PROPORTION SET-1
Q.1 The salary of a worker was first increased by 10% & decreased by the 5%. What was the change in his salary ? A) 4.5 % B) 4.6 % C) 5.5 % D) 5.6 % Ans. A Shortcut: x-y-xy/100 or 10-5-10*5/100 4.5 % Q.2 If population of a town is increased by the 20% …
