Exams

Simplify (2/7 + 3/5) / (2/5 + 2/7)

In a class of 39 students there are 36 girls. The average weight of these girls is 38 Kg and average weight of the full class is 40 kgs. What is the average weight of the boys of the class?

Which of the following is a CORRECT statement?

Which object converts electricity to light?

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?

ab_ _abbc_aa_bbb

In the following question, two statements are given each followed by two conclusions I and II. You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements.

Statement:
(I) Glaciers are receding and the temperature rise of the world is more than last year this time.
(II) Pollution level of the Earth is rising a lot resulting in avalanches.

Conclusions:
(I) Pollution is resulting into hike in temperature of the world.
(II) Pollution is the only reason for depletion of the nature.

Which type of pathogen causes the water­borne disease Hepatitis­A?

In economics secondary effects refer to the