A man travelled a distance of 99 km in 9 hours. He travelled partly on foot @ 9 km/hr and partly on bicycle @ 18 km/hr. What is distance (in kms) travelled on foot?
Ram lent Rs. 6,000/- to Shiva for 3 years and Rs. 8,000/- to Krishna for 5 years at the same rate of simple interest per annum. He got a total interest of Rs. 5,220 from both. Find the rate of interest per annum.
Preetam cycles 6 km towards the south direction. He turns right to move 8 km, and again turns towards the north-east to move 10 km. From there, he moves 15 km on the left. How far is he from his original position?