What rate % does a man get for his money when in discounting a bill due 10 months hence: he deducts 10% of the amount of the bill.

What rate per cent does Shantanu get for his money when in discounting a bill due 30 months hence he deducts 30% of the amount of the bill ?

The true discount on a bill due 9months hence at 12% per annum is Rs 540. Find the amount of the bill and its present worth

The true discount at a bill of ? 3720 due 8 months hence is X 120. Find the banker's gain.

The true discount at a bill of X 7440 due 16 months, hence is X 240. Find the banker's gain.