These are the answers to a quiz which appeared on this blog titled Quiz #QQ1 on Sunday, the 11th of July 2015
1. 8 2. Ceres 3. Egypt 4. Distance 5. The distance covered by light in one year 6. Scandinavian 7. Namib Desert 8. Fishing 9. Barycenter 10. Otto von Guerick
I hope the quiz was quite intriguing. More will come.
Check out this brilliant math, I got from a friend
See this Absolutely amazing Mathematics !
1 x 8 + 1 = 9
12 x 8 + 2 = 98
123 x 8 + 3 = 987
1234 x 8 + 4 = 9876
12345 x 8 + 5 = 98765
123456 x 8 + 6 = 987654
1234567 x 8 + 7 = 9876543
12345678 x 8 + 8 = 98765432
123456789 x 8 + 9 = 987654321
1 x 9 + 2 = 11
12 x 9 + 3 = 111
123 x 9 + 4 = 1111
1234 x 9 + 5 = 11111
12345 x 9 + 6 = 111111
123456 x 9 + 7 = 1111111
1234567 x 9 + 8 = 11111111
12345678 x 9 + 9 = 111111111
123456789 x 9 +10= 1111111111
9 x 9 + 7 = 88
98 x 9 + 6 = 888
987 x 9 + 5 = 8888
9876 x 9 + 4 = 88888
98765 x 9 + 3 = 888888
987654 x 9 + 2 = 8888888
9876543 x 9 + 1 = 88888888
98765432 x 9 + 0 = 888888888
Brilliant, isn't it?
And look at this symmetry :
1 x 1 = 1
11 x 11 = 121
111 x 111 = 12321
1111 x 1111 = 1234321
11111 x 11111 = 123454321
111111 x 111111 = 12345654321
1111111 x 1111111 = 1234567654321
11111111 x 11111111 = 123456787654321
111111111 x 111111111= 12345678987654321
Math is quite interesting
1. Calculate the distance between a pair of opposite sides of a regular hexagon with sides 12 cm long.
2. Calculate, in cm correct to 2 decima places, the radius of the circumcircle of an isosceles triangle with sides of length 13 cm, 13 cm, 10 cm.
3. A chord 8.4 cm long is 5.2 cm from the centre of a circle. Calculate the radius of the circle
4. Two equal circles intersect, and the length of their common chord is 5.6 cm. If the centres of the circles are 9 cm apart, calculate their radii.
5. A batsman had scored 340 runs after a certain number of innings. In his next two innings he made 6 (out) each time, and his average dropped by 1. What was his final average?
6. On a river which runs at 3 km per hour a ferry travels upstream to a certain place and then returns, the total travelling time being 2 hours, and the total distance 22.5 km. Find what the speed of the ferry would be in still water.
7. O is the centre of a circle of radius 37 cm, and the length of a chord MB ia 24 cm. Find the area of triangle OMN.
8. Two equal chords intersect inside a circle. Prove that the line joining their point of intersectio to the centre of the circle bisects the angle between the chords.
9. After a certain number of matches a bowler has had 200 runs knocked off him. In the next match he takes 2 wickets for 42 runs, and increases his average (runs per wicket) by 1. How many wickets has he now taken?
10. If one tap can fill a bath in 6 minutes and another in 12, how long will they take when both are turned on together?
The answers to the above questions are forthcoming in a future post. Solving math problems is a hobby for me. I hope you will find these and others quite refreshing.
1. According to scietists, which is the firdt 4-legged animal to invade the land?
2. According to scientists which is the first ever bird?
3. Which is the fastest insect?
4. Which is the tallest grass?
5. Which is the largest amphibian?
6. Which is the largest lizard?
7. Which is the biggest bird in the world?
8. The hardest wood is from which tree?
9. What is the study of prehistoric animal and plant life through the analysis of fossil remains called?
10. The study of plants is called what?
Check out this <a href="https://ngonimukwepa.blogspot.com/2012/07/philosophical-proweress_03.html?m=1">post<a/> I published on my other blog NgoniMukwepa's View. The post is generally on philosophy and that western philosophical thought is not the only organized works of philosophy ever done by humans. Being organized doesn't mean in written form because in various localities superb works have existed orally, and oral knowledge isn't always inferior to written because at times information is shared orally so that people learn to adapt it there and there than to be dependent on the written text when the information is required.
What is required, is for some of these profound sources of knowledge to be highlighted for the best of all humanity.
Some interesting quiz:
1. How many minutes does it take for the sun's rays to reach the earth?
2. Which is the largest asteroid?
3. Papyrus was first used in which country?
4. A parsec is a measurement of what physical quantity?
5. What is a light-year?
6. The english names of the months are of Roman origin, the days of the week are of which origin?
7. Which desert is referred to as the skeleton coast?
8. Which is the most participated sport in the world?
9. The centre of gravity of the earth-moon system is known as what?
10. Who made the first electric generator?
Answers to the above quiz are forthcoming in a future post. Watch this space.
