# IMO Level 1- Mathematics Olympiad (SOF) Class 7: Questions 542 - 546 of 1022

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## Question 542

### Question

MCQ▾

The selling price of a necklace is ₹ 25800 and the loss percent is . Find the cost price of the necklace.

### Choices

Choice (4)Response

a.

₹ 30961

b.

₹ 30491

c.

₹ 39601

d.

₹ 32600

## Question 543

### Question

MCQ▾

Meet՚s father was 31 years old when his sister was born. His mother is 3 years younger than his father. Now Meet is 25 years old and his sister is 4 years older than him. What is the present age of Meet՚s mother?

### Choices

Choice (4)Response

a.

56 years

b.

59 years

c.

57 years

d.

60 years

## Question 544

### Question

MCQ▾

In a company, there are 45 % female employees. 40 % of all the male employees are developer. If there 58 % employees are developer out of the total 1800 employees, then the number of female employees who are developer are ________.

### Choices

Choice (4)Response

a.

652

b.

648

c.

Can՚t be determined

d.

940

## Question 545

### Question

MCQ▾

Rohan has certain amount in his account. He gives two-third of this to his mother and one third of the remaining to his daughter. The amount left with him now is ________.

### Choices

Choice (4)Response

a.

of the original

b.

of the original

c.

of the original

d.

of the original

## Question 546

### Question

MCQ▾

A school has 4500 students. The ratio of girls to boys 5: 4. How many girls are there in the class?

### Choices

Choice (4)Response

a.

2000

b.

2100

c.

2400

d.

2500