A There are stalls for 10 animals in a ship. The number of ways in which ship load can be made,if there are cows, calves and horses to be transported, animals of each kind being not less than 10, is10b 130C 130d None of the above
A There are stalls for 10 animals in a ship. The number of ways in which ship load can be made,if there are cows, calves and horses to be transported, animals of each kind being not less than 10, is10b 130C 130d None of the above
Text Solution
Verified by Experts
`3x-7y^2+3xyz=3(2)-7(-4)^2+3(2)(-4)(1)`
`=6-7xx16-6xx4`
`=6-112-24`
`=6-136`
`=130`
`=6-7xx16-6xx4`
`=6-112-24`
`=6-136`
`=130`
Topper's Solved these Questions
Similar Questions
Explore conceptually related problems
In a steamer there are stalls for 12 animals and there are horses, cows and calves (not less then 12 each ) ready to be shipped. They can be loaded in 3^12 ways.
In an election, the number of candidates is one greater than the persons to be elected. If a voter an vote in 254 ways, the number of candidates is a. 7 b. 10 c. 8 d. 6
A large cylinderical tank of cross-sectional area 1m^(2) is filled with water . It has a small hole at a height of 1 m from the bottom. A movable piston of mass 5 kg is fitted on the top of the tank such that it can slide in the tank freely. A load of 45 kg is applied on the top of water by piston, as shown in figure. The value of v when piston is 7 m above the bottom is (g=10m//s^(2) ) (a). sqrt(120)m//s (b). 10m//s (c). 1m//s (d). 11m//s
Einstein in 1905 proppunded the special theory of relativity and in 1915 proposed the general theory of relativity. The special theory deals with inertial frames of reference. The general theory of relativity deals with problems in which one frame of reference. He assumed that fixed frame is accelerated w.r.t. another frame of reference of reference cannot be located. Postulated of special theory of realtivity ● The laws of physics have the same form in all inertial systems. ● The velocity light in empty space is a unicersal constant the same for all observers. ● Einstein proved the following facts based on his theory of special relativity. Let v be the velocity of the speceship w.r.t a given frame of reference. The obserations are made by an observer in that reference frame. ● All clocks on the spaceship wil go slow by a factor sqrt(1-v^(2)//c^(2)) ● All objects on the spaceship will have contracted in length by a factor sqrt(1-v^(2)//c^(2)) ● The mass of the spaceship increases by a factor sqrt(1-v^(2)//c^(2)) ● Mass and energy are interconvertable E = mc^(2) The speed of a meterial object can never exceed the velocity of light. ● If two objects A and B are moving with velocity u and v w.r.t each other along the x -axis, the relative velocity of A w.r.t. B = (u-v)/(1-uv//v^(2)) The momentum of an electron moving with a speed 0.6 c (Rest mass of electron is 9.1 xx 10^(-31 kg )
Let S_1, S_2, be squares such that for each ngeq1, the length of a side of S_n equals the length of a diagonal of S_(n+1)dot If the length of a side of S_1i s10c m , then for which of the following value of n is the area of S_n less than 1 sq. cm? a. 5 b. 7 c. 9 d. 10
In a development plan of a city, a contractor has taken a contract to construct certain houses for which he needs building materials like stones, sand etc. There are three firms A, B, C that can supply him these materials. At one time these firms A, B, C supplied him 40, 35 and 25 truck loads of stones and 10, 5 and 8 truck load of sand.If the cost of one truckload of stone and sand are Rs 1200 and 500 respectively, find the total amount paid by the contractor to each of these firms A, B, C separately.
A point source is emitting 0.2 W of ultravio- let radiation at a wavelength of lambda = 2537 Å . This source is placed at a distance of 1.0 m from the cathode of a photoelectric cell. The cathode is made of potassium (Work function = 2.22 eV ) and has a surface area of 4 cm^(2) . (a) According to classical theory, what time of exposure to the radiation shall be required for a potassium atom to accumulate sufficient energy to eject a photoelectron. Assume that radius of each potassium atom is 2 Å and it absorbs all energy incident on it. (b) Photon flux is defined as number of light photons reaching the cathode in unit time. Calculate the photon flux. (c) Photo efficiency is defined as probability of a photon being successful in knocking out an electron from the metal surface. Calculate the saturation photocurrent in the cell assuming a photo efficiency of 0.1. (d) Find the cut – off potential difference for the cell.
A is the set of prime number less than 10, B is the set of odd numbers less than 10 and C is the set of even numbers of less than 10. Which of the following statements are true? (i) A subset B (ii) B subset A (iii) A subset C (iv) C subset A (v) B subset C (vi) phi subset A
Match each of the set on the left in the roster form with the same set on the right described in set-builder form: (i) {1, 2, 3, 6} (a) {x : x is a prime number and a divisor of 6} (ii) {2, 3} (b) {x : x is an odd natural number less than 10} (iii) {M,A,T,H,E,I,C,S} (c) {x : x is natural number and divisor of 6} (iv) {1, 3, 5, 7, 9} (d) {x : x is a letter of the word MATHEMATICS}.
Choose the correct options :- (I) Transgenic animals that produce useful biological products such as human protein ______A_______used to treat emphysema (II) In 1997, the first transgenic cow, rosie produced human alpha -lactalbumin enriched milk (____B____g/l) (III) Transgenic mice are being used to test the safety of ____C_____. (IV) Transgenic animals are made that carry genes which make them _____D____to toxic substance than non-transgenic animals