An object travels 23 m in 3 s and then another 15 m in 2 s. What is the average speed of the object?

In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement". 
 
she thought she (have rediscovered) her real self after a long time

Consider the given statement(s) and decide which of the given assumption(s) is/are implicit in the statement

Statement:
School students are more influenced by their faculty nowadays

Assumption:
I. School students consider their faculty as role models
II. More time is spent at schools by students

In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case noimprovement is needed, select "no improvement".

A neem tree grew as a bonus on the side, raising its head high as if it wants (will peep) into my bedroom

Given is a question followed by two armaments. Decide which of the armaments is/are strong with respect to the question.

Question:
Should we avoid overuse of air conditioners?

Arguments:
I. Yes, it weakens the human system.
II. No, the comfort cannot be forsaken

In the following question, the sentence given with blank to be filled with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

Ignoring someone in pain is an ______ act

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.
 
1. Cybercrime cases pose various kinds of
2. Challenges which requires strengthening of
3. The institutional mechanism.
4. No error

You are given a question and two statements. Identify which of the statements is/are sufficient to answer the question.

Question:

What is the total age of the sisters 10 years from now?

Statements:

1. Lina is 20 years old now.

2. Lina's sister's age is twice that of the age of Lina.