exam Maths Puzzle Numerical Ability

The speed of an airplane in still air is 248 mph. The plane travels 816 mi agains the wind and 1479 mi with the wind in a total time of 19 hr. What is the speed of the wind?

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exam Other Question

A snake can lay either white eggs or brown eggs. Three white eggs and two brown eggs weigh 13 grams, while five white eggs and four brown eggs weigh 24 grams. Find the weight of a brown egg and a white egg. 6(x-1)not equal to 18 this has to be solved for x