Idrissa is walking in the east direction. After walking for 2 meters, she takes a left turn and walks for another 3 meters. She then takes a right turn and walks for 6 meters. She again takes a left turn and walks for another 3 meters. How far is she from the starting point?
The school playground was 190 metres long and 90 metres wide. The school decided to build a new swimming pool using a part of the playground. A square with 20 metres long sides was taken from one of the corners of the playground for this purpose. What is the new area of the playground?
A train traveling at 30 kilometers per hour, passes through a tunnel in 6 minutes. A second train, twice as long as the first one, traveling at the same speed, takes 8 minutes to pass through the tunnel. What is the length of the second train?
An arithmetic sequence is a sequence of numbers a1, a2, a3,... where an - an-1 has the same value for every n. For example, 2, 4, 6, 8, 10,....is such a sequence where the difference between any 2 consecutive numbers is 2. Given, a, b, c, d, and e are consecutive numbers in such a sequence and a + b + c + d + e = 25. What is the value of c?