Class 10 Maths1)If the sum of the zeroes of the polynomial f(x) = 2x³ – 3kx² + 4x – 5 is 6, then the value of k is
4
Class 10 Maths2)The probability of getting exactly one head in tossing a pair of coins is
\(1 \over 2\)
Class 10 Maths3)The total number of events of throwing 10 coins simultaneously is
1024
Class 10 Maths4)The chance of throwing 5 with an ordinary die is
\(1 \over 6\)
Class 10 Maths5)The letters of the word SOCIETY are placed at random in a row. The probability of getting a vowel is
\(3 \over 7\)
Class 10 Maths6)Cards bearing numbers 3 to 20 are placed in a bag and mixed thoroughly. A card is taken out from the bag at random. The probability that the number on the card taken out is an even number, is
\(1 \over 2\)
Class 10 Maths7)The total events to throw three dice simultaneously is
216
Class 10 Maths8)A girl calculates that the probability of her winning the first prize in a lottery is \(8\over 100\) . If 6,000 tickets are sold, how many tickets has she bought?
480
Class 10 Maths9)One card is drawn from a well-shuffled deck of 52 cards. The probability that the card will not be an ace is
\(12 \over 13\)