Sol. Total number of cards = 52
Number of cards removed = 1 + 1 + 1 = 3
Remaining cards = 52 – 3 = 49
SECTION C
Questions number 16 to 25 carry 3 marks each.
Q. 16. Show that 
is an irrational number.
Sol.
Or
Using Euclid’s division lemma, show that the square of any positive integer is either of the form 3m or 3m + 1, for some integer m.
Sol. See Q. 17, 2008 (I Outside Delhi).
| Mathematics 2008 Question Papers Class X | |||||||
| Delhi | Outside Delhi | Compartment Delhi | Compartment Outside Delhi | ||||
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Set 3 | ||||
