Challenger App

No.1 PSC Learning App

1M+ Downloads
Six children take part in a tournament. Each one has to play every other one. How many games must they play?

A10

B15

C12

D18

Answer:

B. 15

Read Explanation:

n(n-1)/2 = 6(6-1)/2 = (6x5)/2 = 15


Related Questions:

Which of the following is divisible by both 6 and 15?
A lawn is in the shape of a rectangle of length 60 metres and width 40 metres. Outside the lawn there is a footpath of uniform width 1 metre broadening the lawn. Find out the area of the path.
20 പൈസ എന്നത് 20 രൂപയുടെ എത്ര ആണ്?
Imaginary part of cosh(x + iy) is
ഏറ്റവുംവലിയ മൂന്നക്ക ഒറ്റ സംഖ്യയും ഏറ്റവും ചെറിയ നാലക്ക ഇരട്ട സംഖ്യയും തമ്മിലുള്ള വ്യത്യാസം എത്ര ?