A trade buys 800 kgs of tomatoes for Rs 7200.  10% tomatoes are damaged in transportation. At what rate (Rs / kg) should he sell the rest earn 30 % profit? 

If the number 247_679 is completely divisible by 9, then the smallest whole number in the place of the blank digit will be 

Ramesh stands 40 meters away from the foot of a tower, if the angle of elevation of the sun is 60 degrees at that point, what will be the height of the tower?

What is the value of θθ.

Find the value of ∠OBE=?

The average weight of 24 students is 35 kg. If the weight of teacher is added the average increased by 400 gram. What is the weight of the teacher?

A certain sum amount to Rs.5832 in 2 year at 8% per annum at compound interest, the sum is