Avg tones of total gold exported by all companies is what percentage of all ores exported by Company C in 2017?

What percentage of increase or decrease in total Quantity of Gold ores exported than to the total quantity of coal ores exported?

Which of the following companies are exported the second maximum tones of ores in the year 2017? 

In 2018, the quantity of gold ore exported is 50% more than the total quantity of gold ore exported by all companies in 2017. Similarly silver exported in 2018 is 20% greater than the total quantity of silver ore exported by all companies in 2017. Find the ratio of gold ore exported to the silver ore?

Total Quantity of ores exported by company C is what percentage of total ores exported by company D?

A started a business with an investment of 8000 and 3 months after B takes over the business from A, with same capital, and after three months C invested 7500 and A entered business for last three months with half of his initial investment. Find the profit percentage of A if the total profit is 8500 at the end of the year.

Manufacturer marked up his goods price 25% more than its cost price. One shopkeeper bought goods from the manufacturer at 10% discount and he sold it at Rs.1800 which gives 20% of profit. Find the original Approximate cost price of goods?

What is the present age of Rahul, if his father is 5 times of Rahul three ago and their age ratio will be 11:3 after two years?

What is the probability of forming rectangle by 4 vertical lines and 3 horizontal lines?

15 men and 2 wardens lived in the hostel. Their Average weight will be 32 kg. One warden left and at the same time one new man joined in the hostel. Now the average weight is 28kg. Then What is the difference between the weight of the warden left from the hostel and the new man joined the hostel?