exam Maths Puzzle Numerical Ability

the sum of a certain even no. and the fourth even no. after it is 48. find the no.

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exam Other Question

A= [-3 1 3] B= [-3 -5 -3]
[-2 5 -4] [2 -1 4]
[4 -2 -1] and [-5 -2 -5], find

If BA.
Please help me solve this equation:
7-6x<4-5x