The Necklace She Borrowed from her rich Friend

Radhika borrowed Rs. 12000 from her friends. Out of which Rs. 4000 were borrowed at 18% and the remaining at 15% rate of interest per annum. What is the total interest after 3 years?

Write the correct indirect form of the given sentence. She said to her friend, "Have you enough money to buy books?

Seema walks to her office, she is facing south when she reaches her office, after starting from home, she turned left twice and then right before reaching her office. Which direction was Seema facing when she started from her home?