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Maths Puzzle
Numerical Ability
r+3s=9
3r+2s=13
Use substitution method to solve system.
If its dependant or inconsistant, so indicate
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a=b
a2=ab this is squared
a2-b2=ab-b2
(a+b)(a-b)=b(a-b)
a+b=b
b+b=b
2b=b
2=1 how is this possible what did i do wrong?
The marvin small manufacturing plant produces two kinds of bikes, 3-speed and 10-speed in two factories. Factory A produces 16 3-speeds and 20 10-speeds in one day, while factory