Question
Pipe ‘A’ and pipe ‘B’,
together can fill 20% of a tank in 6 hours while pipe ‘C’ takes 34 hours to empty it. Pipe ‘A’ and pipe ‘B’ were opened together. After 28 hours, pipe ‘C’ is also opened. Find the total time taken to fill the empty tank this way.Solution
A gave 45% of the amount he had to B. B gave 2/3rd of what he received from A to C. After paying Rs. 240 to the taxi driver out of the amount he gets fr...
In a department 20% of the employees are females. 40% of the male employees know Hindi. The total number of employees who know Hindi is 46%. Find the pe...
In a hotel, the monthly usage of Mixed Spices is 8 kg, and the cost per kilogram of Mixed Spices is Rs. 'a'. If the price per kilogram increases byÂ
Due to a 20% increase in book prices, Riya decided to buy 25% less books. Find out the percentage change in her book expenses.
Initially, a person spends 65% of his salary and saves the remainder. When his salary is increased by 40%, his savings remain unchanged, and he finds th...
In a class of 80 students, 60% are boys, and the remaining are girls. Out of the boys, 25% are good in mathematics, and out of the girls, 50% are good i...
Rahul saves Rs. 6800 more if he spends 70% of his income instead of 90%. Find the savings of Sumit whose income is 25% more than that of Rahul, and spen...
Rajesh spent 49% of his monthly income on food and 51% of the remaining of study. If total monthly savings (after spending on food and study) of Rajesh ...
A spent 20% of his monthly income on study and 65% of the remaining on rent. If amount spent on rent is Rs. 1047.8, then find the amount spent on study
A commodity's price rises by 32%, and as a result, a person reduces their consumption by 15%. What is the overall change (percentage increase or decreas...