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

You are not logged in. #76 20090318 05:10:03
Re: ExerciseThe sum 1 + 4 + 9 + 16 + ....1600 is equal to Character is who you are when no one is looking. #77 20090318 05:26:52
Re: ExerciseIf the volume of a sphere is equal to cubic centimeters, what is the diameter of the sphere?Character is who you are when no one is looking. #78 20090318 05:52:38
Re: ExerciseTwo regular polygons have number of sides in the ratio 4:5. The measure of their interior angles is in the ratio 25:26. How many sides does the polygon with lesser number of sides contain? Character is who you are when no one is looking. #79 20090318 07:10:38
Re: ExerciseIf S_{n} = 1 + 4 + 4^{2} + .... n terms, find the least value of n Character is who you are when no one is looking. #80 20090318 07:30:55
Re: ExerciseForm the equation whose roots are 7 + √3 and 7  √3. Character is who you are when no one is looking. #81 20090318 19:00:12
Re: ExerciseWhat is the value of where n is a natural number? Character is who you are when no one is looking. #82 20090318 19:18:00
Re: ExerciseWhat is the solution set for the equation Character is who you are when no one is looking. #83 20090318 19:34:05
Re: ExerciseWhat is the product of Character is who you are when no one is looking. #84 20090318 19:48:56
Re: ExerciseIf the roots of the equation are two consecutive integers, what is the value of ? Character is who you are when no one is looking. #85 20090318 20:00:02
Re: ExerciseIf n is a natural number, then is divisible by which one of the following? Character is who you are when no one is looking. #86 20090319 03:57:10
Re: ExerciseWhat is the sum of the numbers lying between 107 and 253 which are divisible by 5? Character is who you are when no one is looking. #87 20090319 05:25:58
Re: ExerciseIn a quadratic equation with leading coefficient 1, Shakil reads th coefficient 16 of x wrongly as 19 and obtains the roots 15 and 4. Which of the following are correct roots of the equation? Character is who you are when no one is looking. #88 20090319 05:50:27
Re: ExerciseIf A is the set of factors of the number 15, B is the set of prime numbers less than 10 and C is the set of even numbers less than 9, then what is Character is who you are when no one is looking. #89 20090319 05:58:09
Re: ExerciseWhich of the following is true if ? Character is who you are when no one is looking. #90 20090320 03:37:35
Re: ExerciseThe ares of the adjacent faces of a cuboid are 8 cm², 18 cm², and 25 cm². Find the volume of the cuboid. Character is who you are when no one is looking. #92 20090320 04:25:25
Re: ExerciseA hemispherical bowl of radius 9 cm is full of water. This is filled in cylindrical bottles of radius 3 cm and height 6 cm. How many bottles are required to empty the bowl? Character is who you are when no one is looking. #93 20090320 06:28:54
Re: ExerciseR_{1}, R_{2} are the remainders when the polynomials x³ + 2x²  5ax  7 and x³ + ax² 12x + 6 are divided by x+1 and x2 respectively. If 2R_{1} + R_{2} = 6, find the value of a. Character is who you are when no one is looking. #95 20090320 07:15:46
Re: ExerciseA fraction becomes if 1 is subtracted from the numerator and 2 is added to the denominator. If 2 is subtracted from the numerator and 1 is added to the denominator, the fraction becomes . Find the fraction.Character is who you are when no one is looking. #96 20090320 07:31:47
Re: ExerciseA cylindrical container of height 32 cm and base diameter 18 cm is filled with sand. The container is emptied on the ground and a conican heap of sand is formed. If the height of the conical heap is 24 cm, find te radius of the heap. Character is who you are when no one is looking. #97 20090322 04:52:00
Re: ExerciseIf 2  i is a solution of x^{2}  4x + k = 0, then what is the value of k? Character is who you are when no one is looking. #98 20090322 05:19:15
Re: ExerciseIf then what is the angle between and ? Character is who you are when no one is looking. #99 20090322 05:34:52
Re: ExerciseWhich of the following is true if Character is who you are when no one is looking. #100 20090322 06:19:43
Re: ExerciseFind the angle between the vectors Character is who you are when no one is looking. 