Exams

A solid sphere has a radius 21 cm. It is melted to form a cube. 20% material is wasted in this process. The cube is melted to form hemisphere. In this process 20% material is wasted. The hemisphere is melted to form two spheres of equal radius. 20% material was also wasted in this process. What is the radius (in cm) of each new sphere?

If O is the orthocentre of a triangle ABC and ∠BOC = 100°, the measure of ∠BAC is

If P : Q : R = 2 : 3 : 5, then what is the value of (P + Q) : (Q + R) : (R + P)?

In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.

To cut off a branch, limb, or twig from the main body of a tree

Rearrange the parts of the sentence in correct order.
It is a crisis which
P-unless policymakers
Q-exercise some intelligence
R-will get even worse

Badki can bake 45 cakes in 9 hours, Badki and Chutki together can bake 80 cakes in 10 hours. How many cakes Chutki can bake in 40 hours?

Select the odd word from the given alternatives

Select the word with the correct spelling.