An organic compound on analysis gave C=5.45% , H=9.1% by mass. Its empirical formula is:
The percentage error in measurement of radius of a sphere is 0.2% then the maximum percentage error in the measurement of its volume will be 0.6% 0.1% 0.4% 0.2%
A shopkeeper fixes the marked price of an item 35% above its cost price.The percentage of discount allowed to gain 8% is 20% b.27% c.31% d.43%
The income of a broker remains unchanged though the rate of commission is increased from 4% to 5% .The percentage of slump in business is 1% b.8% c.20% d.80%
As salary is 40% of Bs salary which is 25% of Cs salary.What percentage of Cs salary is As salary? 5% b.10% c.20% d.15%
If the area of a square increases by 69%, then the side of the square increases by (a) 13% (b) 30% (c) 39% (d) 69%
