# IMO- Mathematics Olympiad Class 10: Questions 543 - 547 of 958

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## Question number: 543

MCQ▾

### Question

The Noida office of HP has 2000 executives. Of these 1200 use Saurashtra mail and 700 use Gujarat mail. 200 use both Saurashtra and the Gujarat mail. If an executive is picked at random, what is the probability that he has used Gujarat mail?

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 544

MCQ▾

### Question

3 men and 10 boys can do a piece of work in 8 day, 3 men and 6 boys can do the same in 10 days. 5 men and 10 boys can do 4 times the amount of this work in ________

### Choices

Choice (4) Response

a.

52 days

b.

32 days

c.

42 days

d.

22 days

## Question number: 545

MCQ▾

### Question

One year ago the ratio between Ram’s and Bharat’s salary was. The ratios of their individual salaries between last year’s and this year’s salaries are and respectively. At present the total of their salary is Rs. 1890. The salary of Ram’s now, is ________

### Choices

Choice (4) Response

a.

Rs. 1575

b.

Rs. 1975

c.

Rs. 1875

d.

Rs. 2175

## Question number: 546

MCQ▾

### Question

By selling an article for Rs. 480 a person lost. For what amount should he sell it to make a profit of?

### Choices

Choice (4) Response

a.

Rs. 720

b.

Rs. 800

c.

Rs. 680

d.

Rs. 760

## Question number: 547

MCQ▾

### Question

Divide Rs. 1335 among A, B and C so that Rs. 50 more than of A’s share, Rs. 30 more than of B’s share and Rs. 10 more than of C’s share may all be equal. What is A’s share?

### Choices

Choice (4) Response

a.

Rs. 200

b.

Rs. 300

c.

Rs. 100

d.

Rs. 400

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