IMO- Mathematics Olympiad Class 8: Questions 796 - 801 of 1029

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Question number: 796

» Everyday Mathematics

MCQ▾

Question

The average age of 5 students is 70 years and their ages are in proportion 3: 5: 7: 9: 11, the age of youngest girl is________.

Choices

Choice (4) Response

a.

40 years

b.

10 years

c.

30 years

d.

35 years

Question number: 797

» Everyday Mathematics

MCQ▾

Question

Manoj earns 25000 per month. He spends Equation on household items and Equation on education of his children. The amount he saves is________.

Choices

Choice (4) Response

a.

Rs. 6700

b.

Rs. 5370

c.

Rs. 20, 220

d.

Rs. 10, 000

Question number: 798

» Everyday Mathematics

MCQ▾

Question

The ratio of boys and girls in Reena’s classes is 2: 3. Which of the following ratio is not equivalent to 2: 3?

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 799

» Everyday Mathematics

MCQ▾

Question

Find the compound interest on Rs. 10, 000 in 2 years at 4 % per annum, the interest being compounded half-yearly

Choices

Choice (4) Response

a.

Rs. 824.32

b.

Rs. 885.20

c.

Rs. 800

d.

Rs 825.23

Question number: 800

» Everyday Mathematics

MCQ▾

Question

Sixty- five percent of a number is 21 less than four- fifth of that number. What is the number?

Choices

Choice (4) Response

a.

140

b.

100

c.

150

d.

160

Question number: 801

» Everyday Mathematics

MCQ▾

Question

At 12 noon, Nisha recorded the temperature as Equation . The temperature had increased by Equation from 10 A. M. The temperature at 8 A. M. was Equation warmer than it was at 10 A. M. what was the temperature at 8 A. M?

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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