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adhi kurniawan

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last 3 solved tasks
A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?
No matter how little or how much you use me, you change me every month. What am I?
There are 6 words hidden in the picture, can you find 1 of 6?

Metre

In 1983, the fifth legal definition of the metre was the the distance that light travels in a vacuum in 1/299,792,458 of a second. length of the meter was redefined at the 17th meeting of the international body Conférence Générale des Poids et Mesures (GCPM) by a method to give greater accuracy. It superceded the fourth legal definition adopted on 14 Oct 1960 based on a spectral line of kryton. Earlier definitions included the distance between marks on the international prototype metre bar made of platinum-iridium alloy (28 Sep 1889). Before that, the metre was decided that it should be one ten-millionth of the distance from the North Pole to the equator (1 Aug 1793), and the earliest concept was the length of a pendulum with a half-period of one second (8 May 1790).«

Team Spirit

At one point during a game, the coach said to one of his young players, "Do you understand what cooperation is? What a team is?"
The little boy nodded in the affirmative.
"Do you understand that what matters is whether we win together as a team?"
The little boy nodded yes.
"So," the coach continued, "when a strike is called, or you're out at first, you don't argue or curse or attack the umpire. Do you understand all that?"
Again the little boy nodded.
"Good," said the coach.
"Now go over there and explain it to your mother."

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