# Everyday Mathematics (IMO- Mathematics Olympiad (SOF) Class 9): Questions 77 - 81 of 99

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## Question number: 77

» Everyday Mathematics

MCQ▾

### Question

P, Q and R enter into partnership by making investments in the ratio. After a year, R invests another Rs. 452500 while P withdrew Rs. 65400. The ratio of investments then changes to . How much did R invest initially?

### Choices

Choice (4) Response

a.

Rs. 228900

b.

Rs. 228990

c.

Rs. 225899

d.

Rs. 224516

## Question number: 78

» Everyday Mathematics

MCQ▾

### Question

Tea worth Rs. 126 per kg and Rs. 135 per kg are mixed with a third variety in the ratio. If the mixture is worth Rs. 153 per kg, the price of the third variety per kg will be

### Choices

Choice (4) Response

a.

Rs. 169.50

b.

Rs. 180

c.

Rs. 170

d.

Rs. 175.50

## Question number: 79

» Everyday Mathematics

MCQ▾

### Question

If 3 is added to the denominator of a fraction, the fraction becomes 6. If 4 is added to the numerator, the fraction becomes 30, the fraction is ________.

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 80

» Everyday Mathematics

MCQ▾

### Question

In an office, the number of men is more than the number of women by 12 of the total strength. The ratio of men’s to women’s is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 81

» Everyday Mathematics

MCQ▾

### Question

If a commission of is given on the marked price of a book, the publisher gains . If the commission is increased to, the gain is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

None of the above

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