21. Solve the following for x:2 3 3 53 6 18x x x     �

1.	21. Solve the following for x:2 3 3 53 6 18x 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: 91053+ 1516528154
Answer» 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

21. Solve the following for x:2 3 3 53 6 18x 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: 91053+ 1516528154

Answer»

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

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