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The number of permutations of the 4 different letters, taken two at a time, is given by:
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P - potassium
S - sodium
L - lithium
M - magnesium
C - calcium
A - aluminium
Z - zinc
I - iron
L - lead
H - hydrogen
C - copper
S - silver
G - gold
<span>P - platinum</span>
Answer:
D
Step-by-step explanation:
used guess-and-check and (1,5) is the only ordered pair that made each inequality true
