A person bought some articles at the rate of 5 per rupee and the same number at the rate of 4 per rupee. He mixed both the types and sold at the rate of 9 for 2 rupees. In this business he suffered a loss of Rs. 3. The total number of articles bought by him was 

The area of a rhombus is 216 cm² and the length of its one diagonal is 24 cm . The perimeter ( in cm ) of the rhombus is 

2,40,000 is taken as loan for three years compounded annually at 12.5 % p.a. At the end of first year, the interest is revised to 12 % p.a. The total amount to be repaid at the end of third year is:

The marked price of a table is 130% of its cost price. A discount of 20% is given on the sale of the table. What will be the profit percentage?

A, B and C complete a work in 10, 12 and 15 days respectively. They started the work together. But A left the work before 5 days of its completion. B also left the work 2 days after A left. In how many days will the work completed? 

The following pie-chart shows the monthly expenditure of family on various items. If the family spends Rs. 825 on clothing answer the question

What percent of the total income does the family save 

How many two-digit numbers are divisible by 3 but not by 7?

A completes $$ {7\over 10}$$ of work in 15 days, then he completes the remaining work with the help of B in 4 days. The time required for A and B together to complete the entire work is