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Maths Puzzle
Numerical Ability
How do you write a repeating decimal as a fraction?
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1 Eliminate, x,y between the following equations
x^2-y^2=px-qy, 4xy=qx+py , x^2+y^2=1
2. Eliminate, x,y,z between equations
y/z - z/y = a , z/x -x/z = b , x/y - y/x =c
How many 7 digit numbers are there having the digit 3 three times and the digit 0 four times.
Ans :15