Riddles Repository
Q144: The 30% of a number is 43,589. What is 20% of that number?
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riddle
🏷 Entry 1 of 2
Noun
phonetic: /ˈrɪd(ə)l/
1. a question or statement intentionally phrased so as to require ingenuity in ascertaining its answer or meaning
"they started asking riddles and telling jokes"
1.1. a person or thing that is difficult to understand or explain
"the riddle of her death"
synonyms: puzzle, conundrum, brain-teaser, Chinese puzzle, problem, unsolved problem, question, poser, enigma, mystery, quandary, paradox
Verb
phonetic: /ˈrɪd(ə)l/
1. speak in or pose riddles
"he who knows not how to riddle"
1.1. solve or explain (a riddle) to (someone)
"riddle me this then"
🏷 Entry 1 of 2
Noun
phonetic: /ˈrɪd(ə)l/
1. a question or statement intentionally phrased so as to require ingenuity in ascertaining its answer or meaning
"they started asking riddles and telling jokes"
1.1. a person or thing that is difficult to understand or explain
"the riddle of her death"
synonyms: puzzle, conundrum, brain-teaser, Chinese puzzle, problem, unsolved problem, question, poser, enigma, mystery, quandary, paradox
Verb
phonetic: /ˈrɪd(ə)l/
Archaic 1. speak in or pose riddles
"he who knows not how to riddle"
1.1. solve or explain (a riddle) to (someone)
"riddle me this then"
Riddles Repository
Q145: What is 9% equals to?
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Q146: A problem in mathematics is given to 3 students whose chances of solving individually are
½ , ⅓ and ¼. The probability that the problem will be solved at least by one, is what?
½ , ⅓ and ¼. The probability that the problem will be solved at least by one, is what?
Anonymous Quiz
17%
¼
30%
¹⁄₂₄
16%
²³⁄₂₄
37%
¾
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Riddles Repository
Q147: (−36) + (+12) is equal to
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Q148: The side of a square is 2cm. Semicircles are constructed on two sides of the square. What is the area of the whole figure?
Anonymous Quiz
37%
(4 + π) cm²
37%
(4 + 4π) cm²
18%
4π cm²
8%
8π cm²
Q149: What is the value of an integer, if the sum of the integer and its inverse is ⁴⁄₂?
Anonymous Quiz
40%
1
39%
2
12%
3
8%
4
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Q150: ABCD is a square with side a. In centres A,B,C and D four circles are drawn such that each circle touches externally the remaining three circles. Let δ be the area interior of the square and exterior of the circles. What is the value of δ?
Anonymous Quiz
8%
a²(1 - π)
62%
a²[(4 - π) ÷ 4]
23%
a²(π - 1)
7%
(πa²) ÷ 4
Riddles Repository
Q150: ABCD is a square with side a. In centres A,B,C and D four circles are drawn such that each circle touches externally the remaining three circles. Let δ be the area interior of the square and exterior of the circles. What is the value of δ?
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Riddles Repository
Q151: The radius of a circle is twice its diameter.
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Q152: In a class of 500 students, 350 take mathematics and 284 take science. How many take both mathematicsand science? (All take math and/or science.)
Anonymous Quiz
46%
134
5%
150
13%
66
4%
398
6%
634
26%
cannot be determined from information given
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Riddles Repository
Q153: 785 = 2510 - X. What is X?
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Q154: Assuming a≠b, can aᵇ = bᵃ if both a and b are positive integers?
Anonymous Quiz
52%
True
48%
False
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