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class 10
| math
| probability
Solutions for all the questions from class 10
of subject math
of chapter probability
CLASS
11
12
class 10
class 11
class 12
class 13
class 6
class 7
class 8
class 9
SUBJECT
math
CHAPTER
area related to circles
areas related to circles
arithmetic progressions
circles
constructions
control and coordination
coordinate geometry
heron's formula
introduction to trigonometry
limits and derivatives
View All ↓
Class 10
Math
All topics
Probability
A lot of
$20$
bulbs contain
$4$
defective ones. One bulb is drawn at random from the lot. What is the probability that this bulb is defective? Suppose the bulb drawn in is not defective and is not replaced. Now one bulb is drawn at random from the rest. What is the probability that this bulb is not defective ?
Class 10
Math
All topics
Probability
$12$
defective pens are accidentally mixed with
$132$
good ones. It is not possible to just look at a pen and tell whether or not it is defective. One pen is taken out at random from this lot. Determine the probability that the pen is taken out is a good one.
Class 10
Math
All topics
Probability
A game consists of tossing a one rupee coin
$3$
times and noting its outcome each time. Hanif wins if all the tosses give the same result i.e., three heads or three tails, and loses otherwise. Calculate the probability that Hanif will lose the game.
Class 10
Math
All topics
Probability
Five cards- Ten, jack, queen, king and ace of diamonds, are well-shuffled with their face downwards. One card is then picked up at random.
(i) What is the probability that the card is the queen?
(ii) If the queen is drawn and put aside, what is the probability that the second card picked up is (a) an ace? (b) a queen?
Class 10
Math
All topics
Probability
Complete the following statements:
(i) Probability of an event E + Probability of the event not E
$=$
______.
(ii) The probability of an event that cannot happen is _____. Such an event is called _____.
(iii) The probability of an event that is certain to happen is _____. Such an event is called ______.
(iv) The sum of the probabilities of all the elementary events of an experiment is _____.
(v) The probability of an event is greater than or equal to _____ and less than or equal to ______.
Class 10
Math
All topics
Probability
A die is thrown once. Find the probability of getting a number which
(i) a prime number; (ii) a number lying between
$2$
and
$6$
;
Class 10
Math
All topics
Probability
A bag contains
$5$
red balls and some blue balls. If the probability of drawing a ball from the bag is that of a red ball, find the number of blue balls in the bag.
Class 10
Math
All topics
Probability
A box contains
$90$
discs which are numbered from
$1$
to
$90$
. If one disc is drawn at random from the box, find the probability that it bears (i) a two-digit number (ii) a perfect square number (iii) a number divisible by
$5$
Class 10
Math
All topics
Probability
A die is thrown twice. What is the probability that
(i)
$5$
will not come up either time? (ii)
$5$
will come up at least once?
Class 10
Math
All topics
Probability
A box contains
$5$
red marbles,
$8$
white marbles and
$4$
green marbles. One marble is taken out of the box at random. What is the probability that the marble taken out will be (i) red ? (ii) white ? (iii) not green?
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class 10
| math
| probability
Solutions for all the questions from class 10
of subject math
of chapter probability
Filter Results
CLASS
11
12
class 10
class 11
class 12
class 13
class 6
class 7
class 8
class 9
SUBJECT
math
CHAPTER
area related to circles
areas related to circles
arithmetic progressions
circles
constructions
control and coordination
coordinate geometry
heron's formula
introduction to trigonometry
limits and derivatives
View All ↓
Class 10
Math
All topics
Probability
A lot of
$20$
bulbs contain
$4$
defective ones. One bulb is drawn at random from the lot. What is the probability that this bulb is defective? Suppose the bulb drawn in is not defective and is not replaced. Now one bulb is drawn at random from the rest. What is the probability that this bulb is not defective ?
Class 10
Math
All topics
Probability
$12$
defective pens are accidentally mixed with
$132$
good ones. It is not possible to just look at a pen and tell whether or not it is defective. One pen is taken out at random from this lot. Determine the probability that the pen is taken out is a good one.
Class 10
Math
All topics
Probability
A game consists of tossing a one rupee coin
$3$
times and noting its outcome each time. Hanif wins if all the tosses give the same result i.e., three heads or three tails, and loses otherwise. Calculate the probability that Hanif will lose the game.
Class 10
Math
All topics
Probability
Five cards- Ten, jack, queen, king and ace of diamonds, are well-shuffled with their face downwards. One card is then picked up at random.
(i) What is the probability that the card is the queen?
(ii) If the queen is drawn and put aside, what is the probability that the second card picked up is (a) an ace? (b) a queen?
Class 10
Math
All topics
Probability
Complete the following statements:
(i) Probability of an event E + Probability of the event not E
$=$
______.
(ii) The probability of an event that cannot happen is _____. Such an event is called _____.
(iii) The probability of an event that is certain to happen is _____. Such an event is called ______.
(iv) The sum of the probabilities of all the elementary events of an experiment is _____.
(v) The probability of an event is greater than or equal to _____ and less than or equal to ______.
Class 10
Math
All topics
Probability
A die is thrown once. Find the probability of getting a number which
(i) a prime number; (ii) a number lying between
$2$
and
$6$
;
Class 10
Math
All topics
Probability
A bag contains
$5$
red balls and some blue balls. If the probability of drawing a ball from the bag is that of a red ball, find the number of blue balls in the bag.
Class 10
Math
All topics
Probability
A box contains
$90$
discs which are numbered from
$1$
to
$90$
. If one disc is drawn at random from the box, find the probability that it bears (i) a two-digit number (ii) a perfect square number (iii) a number divisible by
$5$
Class 10
Math
All topics
Probability
A die is thrown twice. What is the probability that
(i)
$5$
will not come up either time? (ii)
$5$
will come up at least once?
Class 10
Math
All topics
Probability
A box contains
$5$
red marbles,
$8$
white marbles and
$4$
green marbles. One marble is taken out of the box at random. What is the probability that the marble taken out will be (i) red ? (ii) white ? (iii) not green?
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2
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4
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7
8
9
10
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page
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