Question 1 :
Set up an equation in the following case: Irfan says that he has 7 marbles more than five times the marbles Parmit has. Irfan has 37 marbles. (Take m to be the number of Parmit's marbles:)

Question 2 :
The teacher tells the class that the highest marks obtained by a student is twice the lowest marks plus 7. The highest score is 87. What is the lowest score?

Question 3 :
Write an equation for the following :Ten times a is 70.

Question 5 :
Set up equations and solve them to find the unknown numbers in the following case: When I subtracted 11 from twice a number, the result was 15. The number is

Question 6 :
The scores in mathematics test (out of 25) of 15 students are as follows: 19, 25, 23, 20, 9, 20, 15, 10, 5, 16, 25, 20, 24, 12, 20 Are mean and median same?

Question 7 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1ca96f59b460d7261eb2b.png' /> Take the data giving the minimum and the maximum temperature of various cities given in the table as shown above. Name two cities where maximum temperature of one was less than the minimum temperature of the other?

Question 8 :
The scores in mathematics test (out of 25) of 15 students is as follows: $19, 25, 23, 20, 9, 20, 15, 10, 5, 16, 25, 20, 24, 12, 20$. Is the mode and median of this data same ?

Question 9 :
The heights of 10 girls were measured in cm and the results are as follows:$135, 150, 139, 128, 151, 132, 146, 149, 143, 141$. What is the range of the data?

Question 10 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c98af59b460d7261e9c4.PNG ' /> From the above graph, read the bar graph which shows the number of books sold by a bookstore during five consecutive years and answer - In which years were fewer than 250 books sold?