exam Maths Puzzle Numerical Ability

A relatively quiet room has a background noise level of 32 decibels. How many times the hearing threshold intensity is the intensity of a relatively quiet room?

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exam Other Question

saquare root of 144 + 3[8=792-3)]= I have tried multiple times to solve this problem! Please Help and guide me through the steps properly!.

Problem:

Find a system of equations with (2, -4) as the solution.