A series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series. 400, -200, 100, ? , 25, -12.5
I go 5 km East, then turn right and go 8km. Then I turn left and go 5 km and then I turn left and go 8 km. At what distance am I from the starting point?
In a row of boys, Amit is ranked 12th from top and Ratan is 15th from bottom. They interchange their position. Ratan now becomes 37th from bottom. How many total boys are there in the row?