exam Maths Puzzle Numerical Ability

find two consecutive even integers such that the smaller added to three times the larger gives a sum of 46

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exam Other Question

Given: (segment)AB is parallel to (segment)CD; (segments)AD and CB are congruent; (segments)AD and CB bisect each other at X.
Prove: triangle ABC is congruent to triangle CDA One canned juice drink is 15% orange juice, another is 10% orange juice. How many liters of each should be mixed together in order to get 5 liters that is 14% orange juice?