book Maths Puzzle Numerical Ability

Simplify the following expression as much as possible:

3square root of 48 x square root of 12

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book Other Question

Need Help please!
2) Use the geometric sequence of numbers 1, 3, 9, 27, � to find the following:
a) What is r, the ratio between 2 consecutive terms?
Answer:
Show work in th One number is 10 more than another. If the sume of twice the smaller number and 3 times the larger number is 55, find the two numbers.