IBPS Government Jobs Exams Programming Functions

61) If P(x) = ax4 + bx3 + cx2 + dx + e has roots at x=1,2,3 and 4, and P(0) = 48, what is P(5)?
a) 48
b) 24
c) 0
d) 50

Read Solution (Total 1)

P(0) means e=48
Solving:
a+b+c+d+48=0
16a+8b+4c+2d+48=0
81a+27b+9c+3d+48=0
256a+64b+16c+4d+48=0
We get a=2 b=-20 c=70 d=-100
So, P(5)= 2*625 - 20*125 + 70*25 - 100*5 + 48 = 48
9 years agoHelpfull: Yes(1) No(0)

IBPS Other Question

60) Given the following information, who is youngest?
C is younger than A; A is taller than B;
C is older than B; C is younger than D;
B is taller than C; A is older than D

a) D
b) B
c) C
d) A
How many workers does the factory W employ? Consider the following two statements to get the answer.
(X) 220 workers at W install batteries, and 300 workers knit socks.
(Y) Every worker of W either installs batteries or knits socks or both.

a) Statement X alone is enough to get the answer
b) X and Y together are not needed and additional data is needed to get the answer
c) Y alone is needed
d) Both X and Y are needed