Answer Posted / anandraj

X=-3y then -3y+5y=20
4y=20
y=20/4 =5

In a class photograph, 5 girls are sitting in the front where as 20 boys are standing behind them. The corner two positions are reserved for the tallest boys of the class. What are the number of ways the students may be arranged?

658

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Solve for x and y: 1/x - 1/y = 1/3, 1/x2 + 1/y2 = 5/9.

1100

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Find the hypotaneous of a right angle isoceles triangle whose area is 50.

779

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f(X)= 2X-1 + f(X-1) if X is not equal to zeroandiff(X=0)=0, If f(X)= f(X-1)+f(X-2) for X>1 then X= ?

756

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There are A,B techers and C,D doctors.Find the possible no of combinations that should not be repeated more than once?

819

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In a class of 60 boys, 45 like pizza, 30 like burger and 5 like neither. Find number of boys who like both?

1140

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wind flows 160 miles in 330 min, for 80 miles how much time required.

824

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Given a collection of points P in the plane, a 1-set is a point in P that can be separated from the rest by a line; i.e. the point lies on one side of the line while the others lie on the other side. The number of 1-sets of P is denoted by n1(P). The maximum value of n1(P) over all configurations P of 19 points in the plane is 18 9 3

1664

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Concentrations of three wines A, B and C are 10, 20 and 30 percent respectively. They are mixed in the ratio 2 : 3 : x resulting in a 23% concentration solution. Find x.

1369

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if the word 'ddosszm' is changed to 'central' then what will be the change for 'rtjbl' ?

955

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If g (0)=g (1)=1 And: g (n)= g (n-1) + g (n –2) find g (6);

732

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Complete the series. 4, -5, 11, -14, 22, ---

810

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Each side of a rectangle is increased by 100% .By what percentage does the area increase?

660

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the ticket sales s for a company increases 25% from standard sales to 60 tickets sold, then 60 - s =:

1714

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Integral ET(epsiolan transpose)*sigma*dV P=strain displacement vector Q=stress-strain deformation Find [K]

701

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