book Maths Puzzle Numerical Ability



solve the no-linear equation:


x+y =7
x^2+ y^2=25

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book Other Question
what is the answer to 1 over 3/5?? victor has a coin collection worth $2.90 that contains nickels, dimes and quaters. if there are 3 times as many dimes as nickels, and the number of quarters is 2 more than the number of nickels. how many nickels, dimes and quarters are there?