Question

a person is allowed 20000 taka of their income tax free. on the rest pay tax of 20 percent. of they pay 4000 taka in tax. find the gross income

Answer 1

Step-by-step explanation:

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Answer 2

A simple pendulum consists of a small metal ball (called bob) suspended by a long thread from a rigid support, such that the bob is free to swing back and forth. ... A pendulum completes every swing (or every oscillation) in exactly the same time, provided its length is kept constant.

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