exam Maths Puzzle Numerical Ability

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sqrt 12a^2b=

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exam Other Question

ex.wk6

Problem #5
Simplify:

2radical (12) + 4 radocal (27)

Problem #6

Simplify:

radical (7) TImes radical (14)

Problem #7

Simplify:
(7 + radical (5)) (7-rad
the area of Lake Superior is about 4 times the area of Lake Ontario.The area of Lake superior is 78,114 km squared.what is the area of lake ontario?