Basics of Finan...

A sewing machine was purchased $$2$$ years ago. Its value decreases by $$10\%$$ every year. Its present value is $$Rs.\ 19,083.60$$. For how much was the machine purchased?

An article can be sold for 20000 cash or for 12000 down payment and 4 equal monthly instalments of 2200 each. Find the interest paid.

A sum of money invested at simple interest amounts to 2480 at the end of four years and 4080 at the end of eight years. Find the principal.

A sum of money at simple interest amounts to  800 in 2 years and to 1200 in 6 years. The sum is

A man had $$\text{Rs. } 2,000$$. He lent a part of this at $$5\%$$ interest and the rest at $$4\%$$ interest. The total interest he received in one year was $$\text{Rs. } 92$$. The money he lent at $$5\%$$ interest was

A sum was put at SI at a certain rate for 8 years Had it been put at 4% higher rate it would have fetched Rs. 80 more Find the sum___

Arjun wants to invest $$Rs. 15,000$$ in two types of bonds. He earns $$12\%$$ in the first type and $$15\%$$ in the second. His investment in $$15\%$$ bond, if he has a total earning of $$Rs. 1,950$$, is

Ram had Rs 2 lakh part of which he lent at 15% p.a. and rest at 12% p.a. Yearly interest on both the parts was Rs 27,600 How much did he lend at 15%?

The compound interest on $$Rs. 10,000$$ in $$\displaystyle2\frac{1}{2}$$ years at $$4\%$$ per annum is

Ajay had purchased a second hand scooter for Rs. $$18000$$ and spent Rs $$1800$$ for repairs. After $$1$$ year he wanted to sell the scooter. At what price should he sell it to gain $$\cfrac{100}{9}$$ $$\%$$ , if $$\cfrac {100}{11}$$ $$\%$$ is to be deducted at the end of every year on account of depreciation?