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Maths Puzzle
Numerical Ability
A group of 10 6-volt & 12-volt batteries are wired in series. The sum of their voltages is 84 volts. How many of each type of battery are used.
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book Other Question
multiply:
5x+5/x-2*2x^2-8x+8/x^2-1
Can someone help me with this problem.
Choose the most reasonable measure.
The height of a bookshelf
(A) 12 cm.
(B) 12 m
(C) 1.2 m
Thanks, Ashley