exam Maths Puzzle Numerical Ability

twice a number is 12 less than 6 times the opposite of the number

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exam Other Question

Janet invested $31,000, part at 10% and part at 1%. If the total interest at the end of the year is $1,390, how much did she invest at 10%? 3 friends, each with some cash, redistribute they money as follows: Ami gives
enough money to Jan & Toy to double the amount that each has. Jan then gives enough to Ami & Toy to d