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Re: Brain Teasers#350. A person's is x^{th} in a row of n houses consecutively numbered 1, 2, 3, 4, 5, .... n. The sum of the numbers of the houses preceding his house is equal to the sum of the numbers following it. If x has the value 35, what is the value of n? Character is who you are when no one is looking. #427 20090305 04:33:04
Re: Brain Teasers
Last edited by JaneFairfax (20090314 01:03:39) #428 20090305 15:34:30
Re: Brain TeasersAnswer to #350: Character is who you are when no one is looking. #429 20090308 01:43:50
Re: Brain Teasers#352. What is the value of where n is a Natural number? Character is who you are when no one is looking. #430 20090308 17:39:00
Re: Brain Teasers#353. There are 4 oranges, 5 apples and 6 mangoes in a fruit basket. In how many ways can a person make a selection of fruits, from among the fruits in the basket? Character is who you are when no one is looking. #431 20090309 00:24:08
Re: Brain Teasers#355. a, b, and c are three positive numbers and If (sa) : (sb) : (sc) = 1 : 7 : 4, what is the ratio a:b:c equal to? #356. If x:y = a:b = 1:5, then what is the value of ? Character is who you are when no one is looking. #432 20090309 00:54:55
Re: Brain Teasers#357. If each permutation of the digits 1, 2, 3, 4, 5, and 6 is listed in the increasing order of magnitude, what would the 289^{th} term be? Character is who you are when no one is looking. #433 20090309 01:34:11
Re: Brain Teasers
Why did the vector cross the road? It wanted to be normal. #434 20090309 02:02:47
Re: Brain TeasersAnswer to #357: Character is who you are when no one is looking. #435 20090313 02:31:16
Re: Brain Teasers#360. How many successive zeros would the product #361. If N = 2^{8} x 5^{3}, how many sets of two factors of N are coprime to each other? #362. How many successive zeros would there be at the end of ? #363. Find the last non zero digit of 96!. #364.What is the number in the unit's place of ? #365. The numbers from 1 to 33 are written side by side as follows: . What is the remainder when this number is divded by 9? Character is who you are when no one is looking. #436 20090314 01:03:05
Re: Brain Teasers#366. How many successive zeros would there be at th end of the product #367. How many successive zeros would there be at the end of the product ? Character is who you are when no one is looking. #437 20090314 06:57:42
Re: Brain Teasers#368. What is the value of #369. What is the value of ? Character is who you are when no one is looking. #438 20090314 19:10:57
Re: Brain Teasers#370. What is the remainder obtained when 4^{96} is divided by 6? Character is who you are when no one is looking. #439 20090314 19:14:37
Re: Brain Teasers#372. what is the number in the unit's place of Character is who you are when no one is looking. #440 20090316 06:15:23
Re: Brain Teasers#373. What are the values of x, y, and z equal to if they are all natural numbers and Character is who you are when no one is looking. #441 20090316 06:28:25#442 20090316 06:31:13#443 20090316 06:32:25#444 20090316 20:16:08
Re: Brain TeasersAnswers to #362, #365, and #372: Character is who you are when no one is looking. #445 20090319 03:06:28
Re: Brain Teasers#374. Let n∈N, N>25 and A, G, and H denote the Arithmetic Mean, Geometric Mean, and Harmonic Mean of 25 and n respectively. What is the smallest value of n such that A, G, and H are in the set Character is who you are when no one is looking. #446 20090320 08:43:52
Re: Brain Teasers#376. Find the sum of all odd numbers of four digits which are divisible by 9. Character is who you are when no one is looking. #447 20090321 03:22:49
Re: Brain Teasers#377. What is the value of Character is who you are when no one is looking. #448 20090322 01:48:08
Re: Brain Teasers
"There is not a difference between an inlaw and an outlaw, except maybe that an outlaw is wanted" Nisi Quam Primum, Nequequam #449 20090322 04:47:07
Re: Brain TeasersAnswer to #375: Character is who you are when no one is looking. #450 20090323 22:11:49
Re: Brain Teasers#378. The difference between the fourth powers of two natural numbers is 12240. The difference between the squares of the two numbers is oneone hundred and seventieth part of the difference between the fourth power of the two numbers. What are the two possible differences between the two natural numbers? Character is who you are when no one is looking. 