# IMO- Mathematics Olympiad Class 10: Questions 342 - 346 of 958

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## Question number: 342

MCQ▾

### Question

A Jar contains 20 marbles of two different colours, out of which x are Blue. One Marble is drawn at random. If 10 more blue marbles are put in the jar, the probability of drawing a blue marbles now will be double that of the previous probability of drawing a blue marbles. Then, the value of x is ________

### Choices

Choice (4) Response

a.

5

b.

8

c.

2

d.

9

## Question number: 343

MCQ▾

### Question

The king, queen and jack of clubs are removed from a deck of 52 playing cards and then well-shuffled. One card is selected from the remaining cards. The probability of getting a club is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 344

MCQ▾

### Question

When two dice are thrown, the probability of getting a number always greater than 4 on the second dice is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 345

MCQ▾

### Question

In a , coordinates of A are and the equations of the medians through B and C are and respectively, so the coordinates of B and C are ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 346

MCQ▾

### Question

Two dices are thrown simultaneously. The probability of getting sum of atleast 11 is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

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