Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

Hi;

The solution #3719 is correct. Keep it up, bobbym!

#3720. The coordinates of the mid-point of the line joining the points (2p + 1,4) and (5,q - 1) are (2p,q). Find the values of p and q.

Hi;

The solution SP #340 is correct. Neat work, bobbym!

SP #341. If

, the sum of first n terms, is given by , then find its nth term.Hi;

Revised problem M #249. A metallic sphere 1 dm in diameter is beaten into a circular sheet of uniform thickness equal to 1 mm. Find the radius of the sheet.

Hi;

The solution #6134 is correct. Neat work, bobbym!

#6135. When 3 is added to the denominator and 2 is subtracted from the numerator of a faction, it becomes 1/4. And when 6 is added to the numerator and the denominator is multiplied by 3, it becomes 2/3. Find the fraction.

Hi;

The Answer #6476 is correct. Excellent, bobbym!

#6477. Where is the 'Po Valley'?

#6478. Name the cities considered the global "Big Four" fashion capitals of the 20th century.

Hi;

The Answer #6473 is correct. Neat work, bobbym!

#6475. Name the novel by Brazilian author Paulo Coelho which was first published in 1988. Originally written in Portuguese, it has been translated into at least 69 languages as of December 2016. The book is an international bestseller. According to AFP, it has sold more than 150 million copies in 70 different languages, becoming one of the best-selling books in history and setting the Guinness World Record for most translated book by a living author.

#6476. Name the Mexican poet and diplomat (March 31, 1914 – April 19, 1998). For his body of work, he was awarded the 1981 Miguel de Cervantes Prize, the 1982 Neustadt International Prize for Literature, and the 1990 Nobel Prize in Literature.

Hi;

The solution SP#340 is correct. Good work, bobbym!

SP #341. Write the first five terms of the following sequence whose nth term is

Hi;

#6134. The sum of a two digit number and the number obtained by reversing the order of its digits is 99. If the digits differ by 3, find the number.

Hi;

#3719. The length of minute hand of a clock is 14 cm. Find the area swept by the minute hand in 1 minute.

Hi;

The solution M #248 is correct. Neat work, bobbym!

M #249. A well with 10 m inside diameter is dug 14 m deep. Earth taken out of it is spread all around to a width of 5 m to form an embankment. Find the area of the embankment.

Hi;

The solution 626 is correct. Splendid, bobbym!

627. Find the value of a for which the area of the triangle formed by the points A(a,2a), B(-2,6) and C(3,1) is 10 square units.

Hi;

The solution #3717 is correct. Neat work, bobbym!

#3718. The circumference of a circle exceeds the diameter by 16.8 cm. Find the circumference of the circle.

Hi;

The Answer #6471 is correct. Good work, bobbym!

#6473. It refers to a medal-round game during the men's ice hockey tournament at the 1980 Winter Olympics in Lake Placid, New York, played between the hosting United States, and the defending gold medalists, the Soviet Union. What is it?

#6474. The 1988 Summer Paralympics in Seoul, South Korea, was another milestone for the Paralympic movement. It was in Seoul that the Paralympic Summer Games were held directly after the Olympic Summer Games, in the same host city, and using the same facilities.The first Winter Paralympic Games were held in 1976. Where was it?

Hi;

The solution #6132 is correct. Smart work, bobbym!

#6133. Ritu can row downstream 20 km in 2 hours, and upstream 4 km in 2 hours. Find her speed of rowing in still water and the speed of the current.

Hi;

The solution SP #339 is correct. Good work, bobbym!

SP #340. Write the first five terms of the following sequence whose nth term is

Hi;

The solution M #247 is correct. Neat work, bobbym!

M #248. A metallic sphere of radius 4.2 cm is melted and recast into the shape of a cylinder of radius 6 cm. Find the height of the cylinder.

Hi;

The solution #6131 is correct. Neat work, bobbym!

#6132. The sum of a numerator and denominator of a fraction is 18. If the denominator is increased by 2, the fraction reduces to 1/3. Find the fraction.

Hi;

The Answer #6469 is correct. Good work, bobbym!

#6471. They are an archipelago in the South Atlantic Ocean on the Patagonian Shelf. The principal islands are about 300 miles (483 kilometres) east of South America's southern Patagonian coast, at a latitude of about 52°S. At various times, the islands have had French, British, Spanish, and Argentine settlements. Britain reasserted its rule in 1833, although Argentina maintains its claim to the islands. In April 1982, Argentine forces temporarily occupied the islands. Name them.

#6472. Name the Colombian novelist, short-story writer, screenwriter and journalist (6 March 1927 – 17 April 2014), known affectionately as Gabo or Gabito throughout Latin America. Considered one of the most significant authors of the 20th century and one of the best in the Spanish language, he was awarded the 1972 Neustadt International Prize for Literature and the 1982 Nobel Prize in Literature.

Hi;

The solution SP #338 is correct. Good work, bobbym!

SP #339. Write the first five terms of the following sequence whose nth term is

.Hi;

The solution M #246 is correct. Neat work, bobbym!

M #247. The minute hand of a clock is 10 cm long. Find the area of the face of the clock described by the minute hand between 8 A.M. and 8.45 A.M.

Hi;

The Answer #6468 is correct. Neat work, bobbym!

#6469. It has been published continuously since its first issue in 1888, nine months after the Society itself was founded. It primarily contains articles about science, geography, history, and world culture. The magazine is known for its thick square-bound glossy format with a yellow rectangular border and its extensive use of dramatic photographs. Name the magazine.

#6470. Name American businessman and the founder and former chairman of Discovery Communications, a broadcasting and film production company which owns the Discovery Channel, TLC and Animal Planet networks, among other ventures. On March 20, 2014, after 32 years at the helm, he made public his decision to retire early from the board and leadership of Discovery Communications after the annual shareholders' meeting of May 16, 2014.

Hi;

The solution #3716 is correct. Smart work, bobbym!

#3717. Two years ago, a father was five times as old as his son. Two years later, his age will be 8 more than three times the age of the son. Find the present ages of father and son.

Hi;

The solution #6130 is correct. Neat work, bobbym!

#6131. The sum of a two digit number and the number obtained by reversing the order of its digits is 121, and the two digits differ by 3. Find the number.

Hi;

The solution 625 is correct. Splendid, bobbym!

626. If the vertices of a triangle are (1,-3), (4,p), and (-9,7) and its area is 15 sq. units, find the value(s) of p.

Hi;

The solution SP #337 is correct. Good work, bobbym!

SP #338. Find the next term of the A.P.