TCS Company

The maximum possible value of (5^x-25^x) over all real values of x is
A.0
B.1/2
C.1
D.1/4
E.infinity

Read Solution (Total 3)

0, max value of a-a^2 is 0 when a=1; but a=5^x so x=0
11 years agoHelpfull: Yes(4) No(1)

ans : option a)0
by the other options the value will not be a real value
11 years agoHelpfull: Yes(3) No(3)
for max value put x=-0.45, the value for entire expression shall be 1/4.
ans will be 1/4.
11 years agoHelpfull: Yes(3) No(0)

TCS Other Question

Points A and B move with uniform speed along straight lines that intersect at right angles at point O. When A is at O, B is 400m from O. After 3 minutes they are equidistant from O. After 5 more minutes, they are again equidistant from O. Then the ratio of A's speed to B's speed is

A merchant buys two dolls voodoo and hopi kachino for rs 600 .with a doll based script hitting the silver screen at that tym hopi kachino type of dolls bcom obnoxious amooung kids while voodoo dolls gained much hype.Due to behind scene logics he sells voodoo dolls at a profit of 22% and the other at a loss of 8%,makes no loss or profit.what is d selling price of hopi kachino doll?