Question

In an exam it consists of 15 true and false questions. If a student answers all the questions at random, what is the probability that he or she will pass the exam, if the minimum score must be 8/10?

Answer 1

so,

8/10×100

80%

so ateleast 80% is true answer

Answer 2

Answer:

true

Igneous rocks are created from the cooling of molten magma/lava. All other rocks are derived from them. Because they form the basis of formation of other types of rocks, igneous rocks are known as the primary rocks.