Syntel
Company
Numerical Ability
Area and Volume
A rope makes 125 rounds of a cylinder with base radius 15 cm. How many time can it go round a cylinder with base radius 25 cm?
(a) 100
(b) 75
(c) 80
(d) 65
Read Solution (Total 3)
-
- 15cm -> 125 round
25 cm -> ?(x) round
more lenth less round (indirect proportion- chain rule)
25:15::125:x
x= 15*125/25
x=75 - 10 years agoHelpfull: Yes(2) No(0)
- ans-75
2*22/7*15*125=2*22/7*25*x
25*x=125*15
x=75 - 10 years agoHelpfull: Yes(0) No(0)
- let the required number of rounds be X.
more radius, less rounds(inverse proportion)
Radius in cm= Round
15=125
25=x
x=(15*125)/25
x=75 rounds - 6 years agoHelpfull: Yes(0) No(0)
Syntel Other Question