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The misdirection in this riddle is in the second half of the description, where unrelated amounts are added together and the person to whom the riddle is posed assumes those amounts should add up to 30, and is then surprised when they do not — there is, in fact, no reason why the (10 − 1) × 3 + 2 = 29 sum should add up to 30.
The legend is inscribed with "KRUGERRAND" and the gold weight. The Krugerrand ( / ˈkruːɡərænd /; [ 1] Afrikaans: [ˈkry.ərˌrant]) is a South African coin, first minted on 3 July 1967 to help market South African gold and produced by Rand Refinery and the South African Mint. [ 2][ 3] The name is a compound of Paul Kruger, the former ...
The 1978 series began with denominations of 2, 5, 10, and 20 rand, with a 50 rand introduced in 1984. This series had only one language variant for each denomination of note. Afrikaans was the first language on the 2, 10, and 50 rand, while English was the first on the 5 and 20 rand. A coin replaced the 1 rand note.
The long and short scales are two of several naming systems for integer powers of ten which use some of the same terms for different magnitudes. [1] [2]Some languages, particularly in East Asia and South Asia, have large number naming systems that are different from both the long and short scales, such as the Indian numbering system and the Chinese, Japanese, or Korean numerals.
The rand was introduced in the then Union of South Africa on 14 February 1961, shortly before the establishment of the Republic on 31 May 1961. The rand replaced the pound with a decimal currency: 100 cents (100c) = 1 rand (R1), 1 rand being valued at 10 shillings and 1 cent at 1.2 pence. The coins bore the forward-facing portrait of Jan van ...
1,000,000,000 (one billion, short scale; one thousand million or one milliard, one yard, [ 1] long scale) is the natural number following 999,999,999 and preceding 1,000,000,001. With a number, "billion" can be abbreviated as b, bil[citation needed] or bn. [ 2][ 3] In standard form, it is written as 1 × 109.
Cent (currency) A United States one-cent coin, also known as a penny. The cent is a monetary unit of many national currencies that equals ⁄100 of the basic monetary unit. Etymologically, the word cent derives from the Latin centum meaning ' hundred '. The cent sign is commonly a simple minuscule (lower case) letter c.
In any quantitative science, the terms relative change and relative difference are used to compare two quantities while taking into account the "sizes" of the things being compared, i.e. dividing by a standard or reference or starting value. [ 1 ] The comparison is expressed as a ratio and is a unitless number.