Q142: A man buys a book for $150, he then sells for $160. He bought the same book back for $170, then resells it again for $180.
How much did he gain or lose?
How much did he gain or lose?
Anonymous Quiz
34%
He gained $10
34%
He gained $20
26%
He did not make any gain or lost
4%
He lost $10
2%
He lost $20
Q143: 2ˣ + 2ˣ⁻¹ = 6144.
Find x
Find x
Anonymous Quiz
12%
4096
13%
64
42%
12
9%
8
4%
6
3%
3
18%
Can not be determined
👍1
Riddles Repository
Q143: 2ˣ + 2ˣ⁻¹ = 6144.
Find x
Find x
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Q144: The 30% of a number is 43,589. What is 20% of that number?
Anonymous Quiz
8%
14,529.67
74%
29,059.33
9%
145,296.67
9%
8,717.80
Riddles Repository
Q144: The 30% of a number is 43,589. What is 20% of that number?
Check here for the correct answer but attempt the question first
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
👍1👏1
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
👍2
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?
Check here for the correct answer but attempt the question first