দুটি জলের কল একসাথে 9 3/8 ঘন্টার মধ্যে অ্যাটাঙ্ক পূরণ করতে পারে। বড় ব্যাসের ট্যাপটি 10 ​​ঘন্টা l...

Paragraph for question nos. 9 to 11 Consider the conic C Q.9 16 12 Equation of circle touching Cat one extremity of latus-rectum and centre ofC is/are (A) 8x 8y2 19x passing throu 22y 0 (B) 8x 8 19x 22y 0 (C) 8x 8y2 19x 22y 0 (D) 8x2 8y2 19x -22y 0 Q.10 The equation of parabolas with same latu as conic C,isare 6x 21 0 (C) y (D) y Q.11 f a hyperbola passes through extremities minor axis of conic C and its transverse and conjugate axis coincides with the minor and major axis of conic C respectively, and the product of eccentricity of hyperbola and conic Cis 1.then (A) equation of hyperbola is A- l. (B) equation of hyperbola is *-1 (C) focus of hyperbola is (0, 2 3) (D) focus of hyperbola is (0,- 07-06-17 20202

The series of natural numbers is divided into grounds as (1), (2, 3, 4), (3, 4, 5, 6, 7), (4, 5, 6, 7, 8, 9, 10)………. If sum of elements in the 20^(th) ground is l , then l is equal to

There are twelve friends A, B, C, D, E, F, G, H, I, J, K and L who invested money in some business in the ratio of 1 : 2 : 3 : 4: 5 : 6 : 7 : 8 : 9 : 10 : 11 : 12 and the duration for which they invested the money is in the ratio of 12 : 11 : 10 : 9 : 8 : 7 : 6 : 5 : 4 : 3 : 2 : 1 respectively. Who will get the maximum profit at the end of the year ?

The runs scored by two teams A and B on the first 60 balls in a cricket match are given below: "N u m b e r o f b a l l s""T e a m A""T e a m B"1-6 2 5 7-12 1 6 13-18 8 2 19-24 9 10 25-30 4 5 31-36 5 6 37-42 6 3 43-48 10 4 49-54 6 8 55-60 2 10

Haemoglobin C_(2952)H_(4664)N_(812)O_(832)S_(8)Fe_(4) , molar mass = 65248 g/mol is the oxygen carrier in blood. An average adult has about 5.0L of blood. Every milliliter of blood has approximately 6.0 xx 10^(9) erythrocytes, or red blood cells and every red blood cell has about 3 xx 10^(8) haemoglobin molecules. The mass of haemoglobin molecules in an average adult is : (N_(A) = 6 xx 10^(23))

{:(A , B , C , D , E , F , G , H , I , J , K , L , M , N , O , P , Q , R ,S , T ,U , V , W ,X , Y , Z), (1 ,2 , 3 , 4 ,5, 6 , 7,8,9,10 , 11 , 12, 13, 14, 15 , 16 , 17 , 18 , 19, 20 , 21 ,22 , 23 , 24 , 25 , 26):} DE :10 :: HI : ?

{:(A , B , C , D , E , F , G , H , I , J , K , L , M , N , O , P , Q , R ,S , T ,U , V , W ,X , Y , Z), (1 ,2 , 3 , 4 ,5, 6 , 7,8,9,10 , 11 , 12, 13, 14, 15 , 16 , 17 , 18 , 19, 20 , 21 ,22 , 23 , 24 , 25 , 26):} M xx N : 13 xx 14 : : F xx R : ?

What volume of strong monobasic acid of normality 10 is needed to prepare 1L of a butter solution of pH9 , using 1mol of NH_(3) and as much of strong acid needed. (K_(b) for NH_(3) = 1.8 xx 10^(-5)) (pK_(b) = 4.7477)