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In an examination, a student attempte...

In an examination, a student attempted 15 questions correctly and secured 40 marks. If there were two types of questions (2 marks and 4 marks questions), how many questions of 2 marks did he attempt correctly? (a) 5 (b) 10 (c) 20 (d) 40

A

5

B

10

C

20

D

40

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B
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S CHAND IIT JEE FOUNDATION-LINEAR EQUATIONS IN ONE VARIABLE-Question Bank - 9
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