In Δ ABC, D and E are points on AB and BC, respectively, such that DE is parallel to AC. If DE = 3 cm, AC = 5 cm and the area of trapezium ACED = 32 cm2, then what will be the area of Δ BDE?

32 is what percentage of 80?

An item when sold for ₹ 1,690 earned 30% profit on the cost price. Then the cost price is 

When a shopkeeper gives 10% discount on the list price of a toy, his gain is 20%. If he had given a discount of 20%, his percentage of gain would have been 

Given that y is directly proportional to x and y = 2 when x = 8. Find the value of x when y = 8.

At some rate of simple interest, A lent ₹ 6,000 to B for 2 years and ₹ 1,500 to C for 4 years and received ₹ 9,00 as interest from both of them together. The rate of interest per annum was

In ∆PQR, O is the incentre and ∠P = 42°. Then what is the measure of ∠QOR?

An article is marked 35% above its cost. If a profit of 20% is earned by selling the article, then the discount per cent offered on the marked price of the article is: