Q.If a bag containing red and white balls, half the number of white balls is equal to one-third the
number of red balls. Thrice the total number of balls exceeds seven times the number of white
balls by 6.
1. How many balls of white colour does the bag contain?
(a) 10
(b) 12
(c) 14
(d) 18

2. How many balls of red colour does the bag contain ?
(a) 10
(b) 12
(c) 14
(d) 18

Q.A box contains 90 discs , numbered from 1 to 90 .if one disc is drawn at random from
The box , then the probability that it bears aprime number less than 23 is :
(a)7/90
( b) 10/90
(c) 4/45
(d) 9/89

Q.In a survey it is found that every fifth person possess a vehicle , what is the probability
of a person not possessing the vehicle?
(a) 0
( b ) 15
(c) 45
(d) 1

Q Ashmita and Shreya are sisters, what is the probability that both have birthday on
14th September (ignoring leap year)
(a)1/30
( b) 2/365
(c) 1/366
 

Q.Given that sin a = √3/2 and cosb = 0, then the value of b - a is
(a) 00
(b) 900
(c) 600
(d) 300