Infosys Company Numerical Ability Probability

During a party 12 guests were there and each clinked his glasses with the
other.How many clinks were heard totally?

Read Solution (Total 4)

Infosys Other Question

Mammu got bored playing with marbles and arranged them in an order such
that each row had one less than the row below.If she had 55 marbles how many
were on the bottom row?
Man A lies on monday,tuesday and wednesday.Man B lies on thursday,friday
and saturday.On one particular day A said "Yesterday i lied".then B said
"Yesterday i lied too".On which day were these statements made?