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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