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?

What will be the greatest common factor of 96, 528, 2160, 3520?

In what ratio should wheat of ₹ 14-40 per kg be mixed with wheat of ₹ 11-40 per kg so that the price of the mixture becomes ₹ 12-60 per kg

In what ratio should a grocer mix tea of ₹ 60 per kg with tea of 65 per kg so that by selling the mixture at the rate of ₹ 68-20 per kg, he should make a profit of 10%

Salim's age is 10 years. His grandfather's age is 62 years. After how many years will his grandfather's age be five times that of Salim?

The average age of three girls is 15 years if their ages are in the ratio 3 : 5 : 7, what will be the age of the youngest girl?