Two - third of a consignment was sold at a profit of 5% and the remaining at a loss of 2 %. If the total profit was Rs. 400. then the value of the consignment was

If the interest is compounded half yearly, then interest on Rs.16000 at 5% per annum, at the end of $$ {{1}{1\over 2}}$$ years is.

The table given below shows the cost price and selling price of four articles.

What is the average value of loss of all articles?

A can do a work in 6 days and B can do the same work in 12 days. If A, B and C together can do the same work in 4 days, then in how much days C can do it alone?

8 men working for 9 hours a day complete a piece of work in 20 days. In how many days can 7 men working for 10 hours a day complete the same piece of work?

A Cistern can be filled by a tap in 4 hours while it can be emptied by another tap in 9 hours. If both the taps are opened simultaneously then after how much time will the cistern get filled?

The vertices of the 1 cm side are cut from each corner of a square with a side of 4.5 cm. Find the circumference and area of the octagon formed?

How many pairs of twin primes are there between the integers 1 to 100?