# IMO Level 2- Mathematics Olympiad (SOF) Class 8: Questions 307 - 311 of 315

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## Question 307

Appeared in Year: 2017

### Question

MCQ▾

Find the values of P, Q and R.

 Principal Rate of Interest Time Difference between C. I. and S. I. ₹ 5000 10 % p. a. 3 years ₹ P ₹ Q 10 % p. a. 2 years ₹ 650 ₹ 5000 R % p. a. 2 years ₹ 72

### Choices

Choice (4)Response

a.

P- 155, Q-9500, R-12

b.

P-150, Q-9500, R-12

c.

P-250, Q-6500, R-10

d.

P-155, Q-65000, R-12

## Question 308

### Question

MCQ▾

A train 120 m long passes a man, running at 9 kmph in the direction opposite to that of the train, in 5 seconds. The speed of the train is …

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 309

Appeared in Year: 2017

### Question

MCQ▾

If the average of numbers is and that of numbers is , then the average of numbers is

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 310

Appeared in Year: 2017

### Question

MCQ▾

If 12 men or 18 women can do a piece of work in 14 days, how long will 8 men and 16 women take to finish the work?

### Choices

Choice (4)Response

a.

10 days

b.

9 days

c.

12 days

d.

14 days

## Question 311

Appeared in Year: 2018

### Question

MCQ▾

The table shows the rate of payment in a factory.

 Monday-Saturday ₹ 30.00 per day Sunday ₹ 40.00 Overtime ₹ 5.00 per hour

If Mr Gupta worked from Tuesday to Sunday and received ₹ 220, then how many hours of overtime did he work?

### Choices

Choice (4)Response

a.

3 hrs.

b.

6 hrs.

c.

4 hrs.

d.

8 hrs