@maddy2807 said:Two cards are drawn at a random from a deck of cards. What is the probability that both the cards are of same number or honour?
13c1*4c2 / 52c2
13/13x17
1/17
@Torque024 said:Explain.
Initially even i thought of the answer as 28 but then even 12 is possible while crossing over a century
For example..while going from 1896 to 1908..we get the same calendar year..
And if 12 is possible then even 40 is possible because 40=12+28
@maddy2807 said:Two cards are drawn at a random from a deck of cards. What is the probability that both the cards are of same number or honour?
without replacement:
favourable case: 52C1 * 3C1
sample space: 52C1 * 51C1
probability = 3/51 = 1/17
with replacement :
favourable case: 52C1 * 4C1
sample space: 52C1 * 52C1
probability = 4/52 = 1/13
favourable case: 52C1 * 3C1
sample space: 52C1 * 51C1
probability = 3/51 = 1/17
with replacement :
favourable case: 52C1 * 4C1
sample space: 52C1 * 52C1
probability = 4/52 = 1/13
@Torque024 said:A leap year X has exactly the same calendar as another leap year Y. What can be the absolute difference between the values of X and Y?a 12 b 28 c 40 d All of these
D. all of these.
got 28 in the 1st go.. then it struck me! :D
@maddy2807 said:Two cards are drawn at a random from a deck of cards. What is the probability that both the cards are of same number or honour?
27/51? Honour is color or what?
V is the natural number below 1000, which has the maximum number of divisors. Find the sum of the digits of V.
@nick_baba said:V is the natural number below 1000, which has the maximum number of divisors. Find the sum of the digits of V.
9 ?
@maddy2807 said:Two cards are drawn at a random from a deck of cards. What is the probability that both the cards are of same number or honour?
Choose one honor/number and then choose one card fom the same honor or number.
hence,
probability=C(13, 1)*C(4, 2)/C(52, 2)=1/17
@maddy2807 said:Two cards are drawn at a random from a deck of cards. What is the probability that both the cards are of same number or honour?
@rkshtsurana said:13c1*4c2 / 52c213/13x17 1/17@maddy2807
mera bhi yahi aa raha hain :/
@rkshtsurana said:@Torque024 honour - joker, king , queen, ace
Yaar google par to top 5 cards in every deck honor cards diye hain
In a convex octagon, measures of the angles are in integers. and are in AP. Find the sum of the greatest two angles.
@maddy2807 said:Two cards are drawn at a random from a deck of cards. What is the probability that both the cards are of same number or honour?
OA kya hain???
1/17 hi aye ja raha hain 
@deedeedudu said:Yaar google par to top 5 cards in every deck honor cards diye hain
ha ten bhi hga..but ques k liye toh sare hi lene he..so wont make diff
900= 27 factors@nick_baba said:V is the natural number below 1000, which has the maximum number of divisors. Find the sum of the digits of V.
9?
900 being the no
900 being the no
@nick_baba said:V is the natural number below 1000, which has the maximum number of divisors. Find the sum of the digits of V.
9?
900