A bag has Rs 105 in the denomination of Rs 2 and Re 1 such that the ratio of money from Rs 2 and Re 1 is in the ratio 8:7. A man withdrew Rs 28 of the bag such that equal amount of money from each denomination was taken out and replaced with 5 one rupee coin. Find the ratio of Rs 2 and Re 1 coin finally in the bag.

If $\frac{x}{4}=\frac{y}{10}=\frac{3}{18}$, then $\frac{x+y+z}{2x}$ is equal to

What is the amount on a principal of Rs. 32000 in $2\frac{1}{2}$ years at $8\frac{1}{2}\%$ per annum interest?

A person borrowed Rs. 12000 at certain rate of simple interest and Rs. 13500 at 1% higher rate of interest. If after 4 years the total interest paid by him is Rs. 4620. Find the rate of interest at which he borrowed Rs 12000 

In what time Rs. 10000 invested at 30% per annum will yield Rs. 11970 as compound interest. 

Ravi purchases 90 pens and sells 40 pens at a gain of $10\%$ and 50 pens at a gain of $20\%$. Had he sold all of them at a uniform profit of $15\%$ he would have got ₹ 40 less. Find the cost price of each pen.

A bank offers $5\%$ compound interest calculated on half – yearly basis. A customer deposits ₹ 1600 each on 1^st January and 1^st July of a year. At the end of the year, the amount received by the customer as interest will be:

Sonam got 20% and 50% more marks in English and Science than in Mathematics. What is the ratio of the marks in English and Science?

A sum of 1500 was lent to two people, one at the rate of 6% and the other at 9%. If the simple interest after 2 years is Rs. 216, find the sum lent at each rate.

The monthly income of A and B are in ratio 5:8. The ratio of their expenditure is 2:3 and their combined saving is Rs 5000 per month. If the income of A and B is increased by 20% and 25% respectively and their spending remains unchanged, then their combined saving increased by 60%. Find the ratio of their new income to that of their new saving. 

In a bag, there are three types of coins 1 rupee, 50 paisa and 25 paisa in the ratio 3:8:20. The total value in bag is Rs372. Find the total number of coins in the bag.

A, B, C and D invested Rs.5000, Rs.4500, Rs.4000 and 8000 in a business. After one year, A withdraws his entire amount, B withdraws his entire amount after 2 years, C withdraws his money after 3 years and in the end of 4^th year D also withdraws his sum of money from the business. If they earned Rs.21500 in the end of 4^th year, find A's share in the profit?

A sum of Rs. 3903 is divided between A and B, so that A’s share at the end of the 7 years be equal to B’s share at the end of 9 years,if interest is charged at 4%compounded annually . Find A’s share. 

4 persons went to purchase pens in ratio 1/3:1/4:1/5:1/6from a stationary shop. The shopkeeper decided to give one pen free on purchase of every two pens per person. If the cost of a pen was Rs 7; then find a minimum amount that was earned by the shopkeeper. [For example, if a person wants to buy 4 pens then his purchase will be (2 pens + 1 pen free) + 1 pen i.e for 4 pens he will pay for 3 pens only].

What is the compound interest on Rs. 10,976 for 3 years at $7\frac{1}{7}\%$ per annum?