Total income of Ramesh, Suresh and Preeti is Rs. 8,07,000. The percentages of their expenses are 75%, 80%and 90% respectively. If the ratio of their savings is 16 : 17 : 12, then find the annual saving of each them.

Snehal receives Rs 27,000 per month. She spends 90% of this money. What amount does she save per month?

The monthly incomes of Amit and Atul are in the ratio 6:5. The ratio of their expenditutre is 5:4. If each of them saves Rs 2500 per month, find their monthly incomes. Use the variable x to write their monthly incomes.

The monthly incomes of Amit and Atul are in the ratio 6:5. The ratio of their expenditutre is 5:4. If each of them saves Rs 2500 per month, find their monthly incomes. Use the variable y to write their monthly expenditure.

An amount of Rs.5000 is invested in three types of investments, at interest rates 6% , 7%, 8% per annum respectively. The total annual income from these investment is 350/- If the total annual income from first two investment is Rs. 70 more than the income from the third,find the amount of each investment using matrix method.

A person has Rs. 30,000 to invest. He wants to invest some amount in the fixed deposit and remaining in savings account. The interest rate are 7% and 5% per annum for the fixed deposit and the savings account respectively. Find how he should divide the total amount Rs. 30,000 in two accounts if he wants to get the annual interest as (a) Rs. 1800 (b) Rs. 2000