Q. 8. What is the perimeter of a sector of angle 45° of a circle with radius 7 cm? [Use π = 22/7]
Sol. 
Ans. 19.5 cm
Q. 9. Two friends were born in the year 2000. What is the probability that they have the same birthday?
Sol. Total number of days in a year 2000 = 366
Year 2000 is a leap year
They have the same birthday
Number of favourable days = 1
(they have the same birthday) =
Ans. 
| Mathematics 2008 Question Papers Class X | |||||||
| Delhi | Outside Delhi | Compartment Delhi | Compartment Outside Delhi | ||||
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All Sets(PDF) | |
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Set 2 | |
Set 2 | ||||
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Set 3 | |
Set 3 | ||||
