Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ ¹ ² ³ °
 

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Re: Oral puzzles169. Find the samller of the two numbers whose sum is 35 and difference is 5. IPBLE: Increasing Performance By Lowering Expectations. #77 20060425 03:51:13
Re: Oral puzzles168. IPBLE: Increasing Performance By Lowering Expectations. #78 20060425 03:52:39
Re: Oral puzzles167. IPBLE: Increasing Performance By Lowering Expectations. #79 20060425 03:53:41
Re: Oral puzzles166. IPBLE: Increasing Performance By Lowering Expectations. #80 20060425 03:55:53
Re: Oral puzzles165. IPBLE: Increasing Performance By Lowering Expectations. #81 20060425 03:58:13
Re: Oral puzzles164. IPBLE: Increasing Performance By Lowering Expectations. #82 20060425 03:59:45
Re: Oral puzzles163. IPBLE: Increasing Performance By Lowering Expectations. #83 20060425 04:01:43
Re: Oral puzzles
hehe, true.. But I was actually referring to 176.. You should have guessed that! Last edited by Patrick (20060425 04:02:01) #84 20060425 04:05:29
Re: Oral puzzles162. IPBLE: Increasing Performance By Lowering Expectations. #85 20060425 04:09:20
Re: Oral puzzles161. IPBLE: Increasing Performance By Lowering Expectations. #86 20060425 04:11:01
Re: Oral puzzles
yes IPBLE: Increasing Performance By Lowering Expectations. #87 20060425 04:12:48
Re: Oral puzzles160. IPBLE: Increasing Performance By Lowering Expectations. #88 20060425 14:52:41
Re: Oral puzzlesNeat job, krassi_holmz! Character is who you are when no one is looking. #89 20060425 15:26:18
Re: Oral puzzles181. A policeman is running after a thief who is 200 metres ahead of him. The policeman runs at 4 1/6 meters per second and the thief at 2 1/3 metres per second. In what time will the thief be caught by the policeman? Character is who you are when no one is looking. #90 20060425 18:39:49
Re: Oral puzzles184. If (sinxcosx)²=0.5, what is the value of (sinx+cosx)²? Character is who you are when no one is looking. #91 20060426 18:09:25
Re: Oral puzzles186. If the first term of an Arithmetic Progression is 5 and the 100th term is 292, what is the 51st term? 191. How many terms are there in the series 6, 18, 54, ....., 1458? 192. If two cylinders have their radii in the ratio 4:5 and their heights in the ratio 5:6, what is the ratio of their volumes? 193. A cone made of clay of height 24 cm and radius 6 cm is reshaped into a sphere. What would the radius of the sphere be? 194. If the area of cross section of a cylinder is 22 cm² and its height is 14 cm, what would be its volume? 195. The diameter of the base of two cones are equal. If their slant heights are in the ratio 5:4, what would the ratio of their curved surface areas be? Character is who you are when no one is looking. #92 20060427 14:32:38
Re: Oral puzzles196. What is the value of 197. If i,j and k are three mutually perpendicular unit vectors, what is the value of the scalar triple product ? Character is who you are when no one is looking. #93 20060427 15:57:11
Re: Oral puzzles198. For what value of k would the following system of equations have infinite solutions? Character is who you are when no one is looking. #94 20060428 13:07:54
Re: Oral puzzles201. If 40 persons consume 240 kilograms of rice in 15 days, in how many days would 30 persons consume 48 kilograms of rice? Character is who you are when no one is looking. #95 20060428 13:18:45
Re: Oral puzzles206. Which is the highest number which the product of three consecutive natural numbers, the first of which is even, would be divisible by? 208. Which of the two is greater? 209. What is the value of the given expression? 210. If 146! is divisible by , what is the maximum value of n? Character is who you are when no one is looking. #96 20060429 14:42:11
Re: Oral puzzles211. Which is the number which when added to itself 17times gives 162? Character is who you are when no one is looking. #97 20060430 23:50:32
Re: Oral puzzles221. The sum of the squares of three consecutive odd numbers is 251. Whch is the first number? what is the value of x? 225. If what is the value of x? Character is who you are when no one is looking. #98 20060501 13:58:28
Re: Oral puzzles226. Each interior angle of a regular polygon is 135°. How many sides does the polygon contain? Character is who you are when no one is looking. #99 20060503 00:59:27
Re: Oral puzzles231. If z=2+i√3, what is the value of ?232. What is the value of ? 233. What is the value of ? 234. What is the value of ? 235. What is the value of ? Character is who you are when no one is looking. #100 20060503 14:06:45
Re: Oral puzzles236. A contractor undertook to complete a work in 60 days. He employed 200 men. In 36 days, only half the work was completed. How many more men should be employed to complete the work in time? Character is who you are when no one is looking. 