Aman and Raman together can complete a work in 30 days, Raman and Manan can complete the same work in 36 days and Manan and Aman can complete the same work in 45 days. In how many days can all three together complete the work?

In an election between two candidates, a candidate got 55% of the total valid votes, if the total votes were 15200 and 15% of the votes were declared invalid, then how many valid votes did the other candidate get?

Asif is twice as good a workman as Bashir and together they can complete a work in 30 days. In how many days will Asif alone complete the work?

The average age of A, B and C is 20 years, if the average age of A and B is 19 years, then what is the age of C?

The number of boys in a class is 16% more than the girls, what is the respective ratio of the number of boys to the number of girls in the class?

The cost of a new scooter is Rs 25000, at the end of each year its value becomes 80% of the starting price of that year, what will be the cost of the scooter after 3 years?

Kirti decided to spend 45% of her monthly salary on shopping, after spending Rs 11475 she found that this money was 60% of the amount she spent, what is Kirti's salary?

X can finish a work in 25 days. Y can do the same work in 20 days. Together they work for 5 days and then X leaves. In how many days can Y alone complete the remaining work?