Exams

Three solid spheres of radius 3 cm, 4 cm and 5 cm are melted and recasted into a solid sphere. What will be the percentage decrease in the surface area?

Gaseous exchange takes place in leaves through tiny pores for the purpose of photosynthesis. What are these pores?

Who amongst the following was the successor of Sikh Guru Har Krishan?

What is the direction of torque?

The weights of 4 boxes are 80, 60, 90 and 70 kilograms. Which of the following cannot be the total weight, in kilograms, of any combination of these boxes?

The four walls and ceiling of a room of length 25 m, breadth 12 m and height 10 m are to be painted. Painter A can paint 200 m2 in 5 days, Painter B can paint 250 m2 in 2 days. If A and B work together, they will finish the job in

Which of the following is the largest city of Myanmar?

What is the value of a-b when a2+b2-6a-6b+18 = 0 ?