For the following questions answer them individually
The Difference between compound interest, compounding annually and simple interest on an amount of ₹500 for 2 years is ₹1.25. What is the rate of interest per annum?
A and B can complete a work in 18 days and 36 days respectively. They work together for 8 days and then A leaves. How many days will B take to complete the rest of the work?
Arjun rides his bike 10 km at an average speed of 30 km/h, and again travels 14 km at an average speed of 25 km/h. What is his average speed (approx.) for the entire trip?
The ratio of the third proportion of 5 and 12 with the fourth proportion of 5, 8 and 9 is:
An iron ball of radius 21 cm is melted and recast into spherical balls of radius 7 cm. Find the number of spherical balls.
A vegetable vendor does his sales using a weight which is 12% less than the actual weight and earns a profit of 32% on the cost price. Find the total profit percentage?
Mr. Sharma spends 15% of his total income on rent and 75% of the remaining part on other expenses and still saves Rs.1,700 monthly. What is his monthly income?
The current value of a car is ₹ 8,50,000 and its value is depreciating at the rate of 10% per annum. What will be its value (in ₹ ) after 4 years?