Question

21. Solve the following for x:

2 3 3 5

3 6 18

x x x   

  

22. There are 100 multiple choice questions in an examination. For every correct answer the student

gets 5 marks and for every wrong answer 2 marks are deducted from the total score of correct

answers. A student attempts all questions and his total score is 220.How many questions did he

attempt correctly?

23. ABCD is a rectangle. Find the value of ‘x’, ’y’ and ‘z’. Explain your answer with proper reasons.

24. The measures of two angles of a quadrilateral are 135˚ and 45˚. The third angle is equal to half of

the fourth angle. Find the measure of the third and the fourth angles.

25. Simplify:











 



9

10

5

3

+ 











15

16

5

2

8

1

5

4​

Answer 1

Marks given for every correct answers = 5×60=300

Marks deducted for in correct answer = 40× 2=80

300 - 80 = 220

She attempted 60 answers correctly

Hope it is correct