1.If 4 balls are picked at random, what is the probability that 2 are red and 2 are green?
(1) 4/15
(2) 5/27
(3) 1/3
(4) 2/455
2.If 3 balls are picked at random, what is the probability that none is yellow?
(1) 3/455
(2) 1/5
(3) 44/91
(4) 4/5
(5) None of these
Direction(3-5):Find the approximate value
3.9837+315 X 6-77 X 13+10% of 1500
(1)10600
(2)10850
(3)11200
(4)10700
(5)11000
4.12 X 13+105% of 993 +879/18 +15
(1)1150
(2)1170
(3)1185
(4)1200
(5) 1215
5.12833 + 133 % of 1655 -7/5 of 3533
(1)9000
(2)10000
(3)10500
(4)11000
(5) 9500
Directions (6-7) In each of the following questions What will come in place of ____ in the following questions
6.9 , 28 ,65 , 126 , ?
(1)234
(2)230
(3)217
(4)216
(5) 220
7. 1 ,5 , 3 , 9 , 5, 13 ,7 , 17,11, 21 ,?
(1)13
(2)23
(3)19
(4)23
(5) none of these
Directions (8-10): Study the given information carefully
A basket contains 6 blue, 2 red, 4 green and 3 yellow balls.
8.If 2 balls are picked at random, what is the probability that either both are green or both are yellow?
(1) 2/5
(2) 3/35
(3) 1/3
(4) 3/91
(5) None of these
9.If 5 balls are picked at random, what is the probability that at least one is blue?
9.If 5 balls are picked at random, what is the probability that at least one is blue?
(1) 137/143
(2) 9/91
(3) 18/455
(4) 2/5
(5) None of these
10.If 2 balls are picked at random, what is the probability that both are blue?
(1) 1/5
(2) 8/91
(3) 2/15
(4) 2/27
(5) None of these
ANSWER
2) 3
3) 2
4) 4
5) 2
6) 3
7) 1
8) 2
9) 1
10) 5
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MAHENDRA GURU