exam
Maths Puzzle
Numerical Ability
Please help to simplify the following
-6 times the square root of 2 (5 times the square root of 2 - 5 times the square root of 10)
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exam Other Question
Please help me solve this problem:
A teacher is 15 years older than her student.
In 15 years, the ratio of their aages will be 3:2.
Find their present ages.
y=-1/3x+2
y=2x+12