Vinit and Gopal can do a work together in 4 days. Shyam and Mohan can do the same work in 12 days. So, in how many days can all four complete that work together?

Atul divides some money among his three children A, B and C. The ratio of amount received by A and C together to the amount received by B is 5:2. C received 150% of the amount received by A. If the amount received by C is Rs. 1500. Find the sum of amount received by A and B together. 

The printed price of a book is 320. A retailer pays 244.80 for it. He gets successive discounts of 10% and an another rate. His second rate is-

An amount of money appreciates to Rs. 7,000 after 4 years and to Rs. 10,000 after 8 years at a certain compound interest compounded annually. The initial amount of money was 

What is the equation of a line having slope -1/3 and y-intercept equal to 6? 

A shopkeeper sold an item at a profit of 20 %. If he reduces the price of the item by Rs. 900, he incurs a loss of 10 %. What is the cost price of the item?

If a + b + c = 0, then a³+b³+c³ is equal to 

Direction (94-98): Study the following table to answer the given questions.
         Centre and Post-wise Numbered of candidate

In Kolkata, number of Specialist Officers is approximately what percent of that of Officers?