On a shelf, the first row contains 25% more books than the second row,the third row contains 25% less booksthan the second row, If the total number of books contained in all the rows is 600 then find the number of books in the first row ?
A man standing on a boat south of a light house observes his shadow to be 24 meters long, as measured at the sea level. On sailing 300 meters eastwards, he finds his shadow as 30 meters long, measured in a similar manner. The height of the man is 6 meters above sea level.
Please post the method; in case you mark the answer. I am interested in the methodology.
There are 2 squares S1 ans S2 with areas 8 and 9 unites resply, S1 is inscribed within S2, with one corner of S1 on each side of S2. The corners of the smaller square divides the sides of the bigger square into 2 segments, one of length a and other of b, where b>a. What is the possible value of b/a
a ) >=5 and
b) >=8 and
c) >=11 and
d) >=14 and
If x>0, the minimum value of [(x+1/x)^6 - (x^6 +1/x^6) - 2] / [(x+1/x)^3+ (x^3+1/x^3) is.....?
Six balls numbered 1 to 6 are to be placed in six boxes numbered 1 to 6 .If the balls are to be placed at random into the boxes then the probability that
1) at least two balls are to be placed in corresponding numbered boxes
A) 191/720 b) 529/720C) 1/720 d ) 1/60
A salesman sells two kinds of trousers: cotton and woollen. A pair of cotton trousers is sold at 30% profit and a pair of woollen trousers is sold at 50% profit. The salesman has calculated that if he sells 100% mor e woollen trousers than cotton trousers, his overall profit will be 45%. However he ends up selling 50% more cotton trousers than woollen trousers. What will be his overall profit?
E. None of the above
Please explain.. This is XAT 2009 ques..
in an icecream shop, there are for refrigerators R1, R2. R3 & R4 containing flavours of apple, banana, strawberry and butterscotch respectively. Every customer who comes to the shop buys atleast one ice cream and a maximum of eleven ice creams. today, if every customer who visited the shop bought a different combination of flavors, what could be the maximum number of customers who visited the shop today?
If x is real and │log(x + 5)(2x – 1)│= 1, then find the number of possible values of x.