Capgemini Company Numerical Ability Algebra

A government decides to adopt the exponential method for taking census. Given that P0 is the initial population, r is the average yearly growth rate, and "n" is the time in years, choose from the list below, the correct model qualifying the exponential method?
1) P0 exp rn
2) P0exp r n
3) P0exp n r
Option
A) 1 & 2
B) 1
C) 2 & 3
D) 3

Read Solution (Total 5)

options are not clear...
it should be PO(1+(r/100))^n
10 years agoHelpfull: Yes(9) No(3)

i guess 1,2,3 not printed exactly
10 years agoHelpfull: Yes(1) No(1)
D)because it will increase exponentially w. r. t. years
10 years agoHelpfull: Yes(1) No(1)
A is correct
9 years agoHelpfull: Yes(1) No(0)
A will be
10 years agoHelpfull: Yes(0) No(1)

Capgemini Other Question

2 passengers have together 560 kgs of luggage and are charged for the excess above the weight allowed at 10$ and 26$. If all the luggage had belonged to one of them he would have to pay 46$. The amount of luggage each passenger is allowed without any charge is
(a) 100 kg
(b) 150 kg
(c) 160 kg
(d) Insufficient data. Two trains A and B start simultaneously in the opposite direction from two points A and B arrive at their destinations 9 and 4 hours respectively after their meeting each other. At what rate dose the second train B travels if the first train travels at 80 km per hour. Option
option
A)60 km/h
B)100 km/h
C)120 km/h
D)80 km/h