exam
Maths Puzzle
Numerical Ability
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log3(x+7) + log3 2 = log3 20
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exam Other Question
The Consumer Price Index (CPI), which measures the cost of a typical package of consumer goods, stood at 130.7 in 1990 and 190.7 in early 2005. Let x=0 correspond to 1990, and est
2x- y = -4
-3x + y = -9