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. 
Q. 10. A box contains cards marked with numbers 5 to 20. A card is drawn from the bag at random. Find the probability of getting a number which is a perfect square. 1
Sol. Total number of cards = 16
Perfect square numbers are 9, 16 i.e. Two
Ans. 
| Mathematics 2008 Question Papers Class X | |||||||
| Delhi | Outside Delhi | Compartment Delhi | Compartment Outside Delhi | ||||
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