# IMO Level 1- Mathematics Olympiad (SOF) Class 7: Questions 550 - 554 of 1022

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## Question 550

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### Question

MCQ▾

There are 6 stones in a box with numbers 1 to 6 marked on them. What is the probability of drawing a stone with number 6?

### Choices

Choice (4)Response
a.
b.
c.
d.1

## Question 551

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### Question

MCQ▾

The total cost of 5 books and 3 bags is Rs. 2500. If one book costs Rs. 25 less than one bag, find the price of each book and bag respectively.

### Choices

Choice (4)Response
a.Rs. 320, Rs. 380
b.Rs. 303, Rs. 328
c.Rs. 300, Rs. 320
d.Rs. 330, Rs. 308

## Question 552

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### Question

MCQ▾

Three bells toll at intervals of 12 seconds, 16 seconds and 18 seconds respectively. They start ringing together at a particular time. They next toll together after ________.

### Choices

Choice (4)Response
a.2.8 minutes
b.2.4 minutes
c.3.2 minutes
d.1.2 minutes

## Question 553

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### Question

MCQ▾

Equal sums of Rs. 3400 were lent to Kajal and Misha at 2 % per annum for a period of 3 years and 5 years respectively. Find the difference of the interest paid by Kajal and Misha.

### Choices

Choice (4)Response
a.Rs. 167
b.Rs. 260
c.Rs. 136
d.Rs. 366

## Question 554

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### Question

MCQ▾

When Ravesh travelled 45 km he found that of the entire journey was still left. The length of the journey left is

### Choices

Choice (4)Response
a.67.5 km
b.45 km
c.150 km
d.112.5 km