Question
Tap A and Tap B fill a drum of volume 475 liters in 19
minutes. If their efficiencies are in the ratio x:y respectively and B alone takes to fill the cistern 47.5 minutes. Find x-y.Solution
                    A+B         B Time         19   :  47.5 Efficiency    47.5  :    19                          25  :    10 Efficiency of A+B = 25 Efficiency of B = 10 Efficiency of A = 25 – 10 = 15 Ratio = x:y = 15:10 So, x – y = 15 – 10 = 5
There are 100 students in a particular class. 55% students play rugby, 30 % play basketball and 15% play both the games. What is the number of students ...
In a given years, A sold 1600 caps while B sold 30% more number of caps than A and C sold 20% less number of caps than B. Find the ratio between the num...
In a company, there are either male or female employees. There are x% male employees in the company. The number of female employees that are skilled are...
Monthly income of A is Rs. 85000 out of which he spent 25%, 18% and 24% of his total income in rent, medicine and transportation, respectively. Find his...
A man invested all his current month income in starting of a new business in which he spends 30% in advertisement 15% of remaining in furniture 20% of r...
On Wednesday, the price of tomatoes increased by x% as compared to Tuesday and the price of tomatoes decreased by x/2% on Tuesday as compared to Monday....
J's salary is 35% less than V's salary, then how much percent more or less is J's salary compared to G's salary, given that G's s...
- When 120 is added to a number, it becomes 250% of that number. Find 20% of the original number.
The marks obtained by A is 60% more than B, and the marks obtained by C is 180 more than the difference of A and B. If C obtained 330 marks, then find t...
The value of A’s car is depreciating by 35% every year whereas the value of his house is appreciating by 12% each year as compared to the previous yea...
