REVISION ASSIGNMENT 01 ( 23.01.2018)

                              DASS AND BROWN WORLD SCHOOL

Class X                                                      Revision assignment 01

1.       Draw a triangle ABC in which AB= 5 cm , BC= 6 cm and <ABC= 60⁰ . Then , construct a triangle whose sides are  times the corresponding sides of triangle ABC .

2.       Draw a circle of radius 3.5 cm . Draw a pair of tangents to this circle which are inclined at an angle of 60⁰ . Write steps of constructions.

3.       Card numbered 11 to 60 are kept in a box. If a card is drawn at random from the box, find the probability that the number on the drawn card is i) an odd number  ii) a prefect square number iii) divisible by 5 iv) a prime number less than 20

4.       Two different dice are rolled together. Find the probability of getting i) the sum of number on the two dice to be 5  ii)even number on both the dice  iii) a doublet

5.       What is the probability of getting 53 Tuesday in a leap year?

6.       One card is drawn at random form a well shuffled deck of 52 cards , find the probability that the card drawn is i) a king ii) a red eight iii) a spade iv) a red card v) the six of the clubs vi) a face card

7.       In a family of 3 children, find the probability of having at least one boy?

8.       Find the missing frequencies f1 and f2 in the table given below, it being given that the mean of the given frequency distribution is 50.

Class	0-20	20-40	40-60	60-80	80-100	Total	60-70
Frequency	17	F1	32	F2	19	120	2

9.       If the mean and mode of a frequency distribution is 53.4 and 55.2 respectively, find the median.

10.   Find the mean , median and mode of the following data :

Class	0-10	10-20	20-30	30-40	40-50	50-60	60-70
Frequency	6	8	10	15	5	4	2