exam Maths Puzzle Numerical Ability

describe a pattern in the sequence of numbers. Predict the next number:
1,2,4,7,11...

Read Solution (Total 1)

exam Other Question

Solve by using the quadratic formula

4x^2-3x+3=0

Having trouble any help appreciated.
the speed of an airplane in still air is 286 km/h it travels 883 km against the wind and 1119 km with the wind in total time is 13 hr.