Question 3 :
In a class test containing 10 questions, 5 marks are awarded for every correct answer and (-2) marks are awarded for every incorrect answer and 0 for questions not attempted. Mohan gets four correct and six incorrect answers. What is his score?
Question 5 :
A plane is flying at the height of 5000 m above the sea level. At a particular point, it is exactly above a submarine floating 1200 m below the sea level. What is the vertical distance between them?
Question 8 :
For the two given numbers check whether their sum is between -11 and -4: 7 and (-11).
Question 12 :
For the two given numbers check whether their sum is between -11 and -4: 1 and (-13).
Question 15 :
Are they equal? (– 23) + 32 and 32 + (– 23)
Question 17 :
For the two given numbers check whether their sum is between -11 and -4: 1 and (-11).
Question 18 :
Use the sign of >, < or = in the blank to make the statement true: -231 + 79 + 51 _____ - 399 + 159 + 81
Question 19 :
A certain freezing process requires that room temperature be lowered from 40°C at the rate of 5°C every hour. What will be the room temperature 10 hours after the process begins?
Question 20 :
Fill in the blank to make the statement true: $(-25)\times30=-30\times\left[\ \ \ \ \ \ \right]$
Question 21 :
Use the sign of >, < or = in the blank to make the statement true: 23 - 41 + 11 _____ 23 - 41 - 11
Question 22 :
State true or false,' Addition and multiplication are associative for integers'.
Question 24 :
A water tank has steps inside it. A monkey is sitting on the topmost step (i.e., the first step). The water level is at the ninth step. He jumps 3 steps down and then jumps back 2 steps up. In how many jumps will he reach the water level?
Question 25 :
State whether the following statement is correct: When two positive integers are added we get a positive integer.
