One number is 50% less than X and another number is 20 percent less than X. What is the ratio of both the numbers?

A train passed by a man standing on the platform in 7 seconds and passed by the platform completely in 28 seconds. If the length of the platform is 330 metres, what is the length of the train?

Study the following graph to answer these questions :
Percent profit earned by two companies A & B over the years.
Profit = Income – Expenditure

Total expenditure of Company A & B together in 2001 was Rs. 13.5 lakhs. What was the total income of the two companies (in Rs. lakh) in that year?

Two years ago, the average age of Ram and Shyam was 26 years. Five years hence, the age of Ram will be 40 years and Shyam is 5 years younger than Mohan, then find the difference between the age of Ram and Mohan.

Prashant's monthly income is 30% more than that of Vimal. Vimal's monthly income is 20% less than that of Abhishek. If half of the value of the difference between the monthly income of Prashant and Abhishek is Rs.1800, what is the monthly income of Vimal? 

A train 200 m long running at 36 kmph takes 55 seconds to cross a bridge. Length of the bridge is

Study the following graph and answer the question that follow.
What is the respective ratio between the number of candidates who have failed from institute B and the number of candidates who have appeared from institute F?

A house worth Rs.1,50,000 is sold by X at a 5% profit to Y, Y sells the house back to X at a 2% loss. Then find profit and loss in the entire transaction.