TCS Company Numerical Ability Time Distance and Speed

The pacelength P is the distance between the rear of two consecutive footprints. For men, the formula, n/P = 144 gives an approximate relationship between n and P where, n = number of steps per minute and P = pacelength in meters. Bernard knows his pacelength is 164cm. The formula applies to Bernard's walking. Calculate Bernard's walking speed in kmph.
1) 236.16
2) 23.238
3) 8.78
4) 11.39

Read Solution (Total 7)

Ans is b)23.62
given n/p=144 (p-->in metre and n is no.of steps per minutes)
p=164cm=1.64m
n=1.64*144=236.16(that is no. of steps per minutes)
total distance is 164*236.16=38730.24 this is in cms
in km-->0.3873024km/minutes
0.3873024*60=23.238144 ( in hours)
it approximately to 23.62
13 years agoHelpfull: Yes(11) No(1)

None of the given options. App 23.24 kmph.
13 years agoHelpfull: Yes(7) No(3)
speed=144*164*60*164*10^-5
=>speed=23.62km/hr.
13 years agoHelpfull: Yes(4) No(2)
23.238 kmph
13 years agoHelpfull: Yes(3) No(1)
here given
the first one covers 1mt distance in 1min with 144 speed

we have to find for 164 cm i.e 1.64mts speed in 1min

so (1.64/1)144 =236.16
13 years agoHelpfull: Yes(3) No(14)
ans is a)236.16
here given n/p=144
p in meters
here p is 164cm=1.64m
n=144*1.64
=236.16
13 years agoHelpfull: Yes(1) No(7)
23.238
13 years agoHelpfull: Yes(0) No(0)

TCS Other Question

Planet fourfi resides in 4-dimensional space and thus the currency used by its residents are 3-dimensional objects. The rupee notes are cubical in shape while their coins are spherical. However the coin minting machinery lays out some stipulations on the size of the coins.
a) The diameter of the coins should be at least 64mm and not exceed 512mm.
b) Given a coin, the diameter of the next larger coin is at least 50% greater.
c) The diameter of the coin must always be an integer.
You are asked to design a set of coins of different diameters with these requirements and your goal is to design as many coins as possible. How many coins can you design?
a) 9
b) 5
c) 8
d) 6
The pacelength P is the distance between the rear of two consecutive footprints. For men, the formula, n/P = 144 gives an approximate relationship between n and P where, n = number of steps per minute and P = pacelength in meters. Bernard knows his pacelength is 164cm. The formula applies to Bernard's walking. Calculate Bernard's walking speed in kmph.