IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 794 - 799 of 1042

Access detailed explanations (illustrated with images and videos) to 1042 questions. Access all new questions- tracking exam pattern and syllabus. View the complete topic-wise distribution of questions. Unlimited Access, Unlimited Time, on Unlimited Devices!

View Sample Explanation or View Features.

Rs. 450.00 -OR-

How to register? Already Subscribed?

Question 794

Edit

Question

MCQ▾

A ladder 10 meters long reaches a window which is 6 meters above the ground on one side of a street. Keeping its foot at the same point, the ladder is turned to other side of the street to reach a window 8 meters high. The width of the street is ________.

Choices

Choice (4)Response
a.12 m
b.11 m
c.14 m
d.10 m

Question 795

Edit

Question

MCQ▾

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.30 years
b.40 years
c.35 years
d.10 years

Question 796

Edit

Question

MCQ▾

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

Choices

Choice (4)Response
a.Rs. 10,000
b.Rs. 6700
c.Rs. 20,220
d.Rs. 5370

Question 797

Edit

Question

MCQ▾

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.
b.
c.
d.

Question 798

Edit

Question

MCQ▾

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 825.23
b.Rs. 885.20
c.Rs. 824.32
d.Rs. 800

Question 799

Edit

Question

MCQ▾

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.160
c.100
d.150