quant

some more question to solve
mixed bag:

a) by selling 9 article for a rupee, a man incurred a loss of 4%, to make a gain of 44%, the number of article to be sold for a rupee is?

b) the mean of 19 observation is 24. if the mean of the first 10 observations is 17 and that of the last 10 observation is 24, find the 10th observation?

c) if ax+by=6, bx-ay= 2 and x^2+y^2=4 the the value of a^2+b^2=?

d) if G is the centroid of triangle ABC and AG=BC, the angle BGC is ?

e)  the next term of the series, -1,6,25,62,123,124............ is?

f) (1+876542*876544) / (876543*876543)

g) the greatest no. that will divide 19, 35 and 59 to leave the same remainder is each case is :



I) if tan(x+y)tan(x-y)=1, then the value of tan x is;?

try to solve this few question if you want to discuss any question let me know...
and please leave your valuable comments
for ans: email me in magiclampatyourservice@gmail.com or click on (CGL)

THANK YOU!