The centroid of a ∆ABC is G. The area of ∆ABC is 60 cm². The area of ∆GBC is

In a regular polygon, the exterior and interior angles are in the ration 1:4.The number of sides of the polygon is

A contractor undertakes to make a road in 40 days and employs 25 men. After 24 days, he finds that only one- third of the road in made. How many extra men should he employ so that he is able to complete the work 4 days earlier?

What will be the compound interest on a sum of Rs 7500 at 4 % in 2 years?

A bar graph showing the height of six mountain peaks. Study the bar graph and answer the following Questions.

Which peak is the second highest?

A double bed is marked at Rs. 7500. The shopkeeper allows successive discounts of 8%, 5% and 2% on it. What is the Net selling price?

A store sells a watch for a profit of 25% of the cost. Then the percentage of profit against selling price is-

In a class of 66 students there are 33 girls. The average weight of these girls is 61 Kg and average weight of the full class is 66 kgs. What is the average weight of the boys of the class?