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objective Ques (9 results)
1)

If the sum of the zeroes of the polynomial f(x) = 2x³ – 3kx² + 4x – 5 is 6, then the value of k is

Class 10 Maths
A)

5

B)

3

C)

1

D)

4

E)

7

2)

The probability of getting exactly one head in tossing a pair of coins is

Class 10 Maths
A)

0

B)

1

C)

2

D)

\(1 \over 2\)

3)

The total number of events of throwing 10 coins simultaneously is

Class 10 Maths
A)

2310

B)

4523

C)

1230

D)

1452

E)

1024

4)

The chance of throwing 5 with an ordinary die is

Class 10 Maths
A)

\(1 \over 6\)

B)

\(11 \over 6\)

C)

\(10 \over 6\)

D)

4

5)

The letters of the word SOCIETY are placed at random in a row. The probability of getting a vowel is

Class 10 Maths
A)

\(1 \over 2\)

B)

\(3 \over 7\)

C)

\(14 \over 6\)

D)

\(1 \over 6\)

6)

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

Class 10 Maths
A)

\(1 \over 7\)

B)

\(7 \over 3\)

C)

\(21 \over 2\)

D)

\(1 \over 2\)

E)

\(1 \over 20\)

7)

The total events to throw three dice simultaneously is

Class 10 Maths
A)

216

B)

213

C)

201

D)

18

8)

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?

Class 10 Maths
A)

480

B)

490

C)

500

D)

510

9)

One card is drawn from a well-shuffled deck of 52 cards. The probability that the card will not be an ace is

Class 10 Maths
A)

\(1 \over 13\)

B)

\(12 \over 14\)

C)

\(12 \over 13\)

D)

45

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