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Q) A bag contains 25 balls. Some of them are yellow and others are green. One ball is drawn at random. If probability of getting a green ball is then find the number of yellow balls. (Q 24 – 30/5/2 – CBSE 2026 Question Paper) Ans: Step 1: Since, the bag has total 25 balls, […]
probability
Q) A bag contains 30 balls out of which ’m’ number of balls are blue in colour.(i) Find the probability that a ball drawn at random from the bag is not blue.(ii) If 6 more blue balls are added in the bag, then the probability of drawing a blue ball will be 5/4 times the
29. A bag contains 30 balls out of which ’m’ number of balls are blue in colour. Read More »
Q)Â A group of friends wanted to play cards with two identical packs together. While shuffling the cards, three cards are dropped. Rest of the cards are shuffled and one card is drawn at random. Assuming that the dropped cards were a queen of hearts, a ten of spades and an ace of clubs, answer the
Q) Two dice of different colours are thrown at the same time. Write down all the possible outcomes. What is the probability that: (i) same number appears on both the dice?(ii) different number appears on both the dice? (Q 31 – 30/1/1 – CBSE 2026 Question Paper) Ans: Step 1: We know that in case
Q) Two different coins are tossed simultaneously. What is the probability of getting:(i) at least one head? (ii) at most one tail ? (iii) a head and a tail? (Q 29 – 30/1/3 – CBSE 2026 Question Paper) Ans: Step 1: We know that in case of n coins, the total outcomes = (2)n ∵
Q) Two different dice are thrown together. Find the probability that the numbers obtained have:(i) even sum (ii) even product. (Q 30 – 30/2/3 – CBSE 2026 Question Paper) Ans: Step 1: We know that in case of n dice, the total outcomes = (6)n ∵ here we have 2 dice, ∴ total outcomes =
Q) Two dice are thrown at the same time. Determine the probability that:(i)Â Â the sum of the numbers on the two dice is 5.(ii)Â the difference of the numbers on the two dice is 3. (Q 28 – 30/2/2 – CBSE 2026 Question Paper) Ans: We know that in case of n dice, the total
Q) Two dice are tossed simultaneously. Find the probability of getting (i) an even number on both dice. (ii) the sum of two numbers more than 9. Ans: Step 1: Since each die has 6 faces and we are tossing 2 dice, ∴ Total outcomes = (6)2 = 36 Part (i) Step 2: Let’s first calculate
Q) A box containing cards numbered between 0 and 100 are shuffled and a card is picked at random. Find the probability of getting a card which is:(a) divisible by 6.(b) not divisible by 6 ICSE Specimen Question Paper – 2026 Ans: (a) Step 1: Let’s start by looking at all possible outcomes:Since the cards
Q) While shuffling a pack of 52 cards, one card was accidently dropped. Find the probability that the dropped card (i) is not a face card. (ii) is a black king. PYQ: Q 25 – CBSE 2025 – Code 30 – Series 5 – Set 1 Ans: (ii) Probability to get a non – face