Part C - Elementary Mathematics
400 apples were bought at ₹1,210 per hundred and were sold at a profit of ₹860. Find the selling price (in ₹) per dozen of apples.
Ashish has two grandsons Ketan and Mahesh. 15 year old Ketan gets some money from Ashish's wealth and 16 year old Mahesh gets rest of the money. But Ketan and Mahesh will get money only when they turn 23 years old. Till then the money is in a bank getting interest at rate 4% compounded annually. When both turn 23, they receive the same amount. How much had Ashish given Mahesh (in ₹) initially, if total money with Ashish was ₹25,500?
A and B can do a piece of work in 28 days; B and C can do the same work in 18 days and A, B and C together can do it in 16 days. The time required (in days) to finish the work by A and C is:
29 \( \frac{11}{17} \)
25 \( \frac{11}{13} \)
23 \( \frac{11}{15} \)
27 \( \frac{13}{19} \)