exam Maths Puzzle Numerical Ability

List the results that have a sum of one (1) from the following list:
11 21 31 41 51 61
12 22 32 42 52 62
13 23 33 43 53 63
14 24

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exam Other Question
(2y^3-5y)(4y^2+3) Find the area of ∆ABC if A=56º, b=20 ft, and c=12 ft. Round to the nearest tenth.

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