TCS Company Numerical Ability Geometry

Two identical circles intersect so that their centres, and the points at which they intersect,
form a square of side 1 cm. The area in sq. cm of the portion that is common to the two
circles is:
a) (π/2) – 1
b) 4
c) √2 – 1
d) √5

Read Solution (Total 2)

(n/2)-1
when two circles having n diameter then they make square of 1cm then they intersect at the center then the circle becomes n/2 for that 1cm square is neglected so the answer is (n/2)-1
9 years agoHelpfull: Yes(2) No(0)

a) (π/2)-1
{2*(1/4)*π*(1)^2}-(1*1)=(π/2)-1
9 years agoHelpfull: Yes(2) No(0)

TCS Other Question

. Lottery balls are numbered and coloured balls. In the famous Lotto, six numbered balls are
drawn at random from 49 balls. In each ticket one needs to guess the six numbers that
would be drawn. If no correct guesses are received the prize money is carried to the next
draw. It is not uncommon to see prize money accumulating to several millions of dollars. An
urn contains m white and n black balls. A ball is drawn at random and is put back into the
urn along with k additional balls of the same colour as that of the ball drawn. A ball is again
drawn at random. The probability of drawing a white ball now:
a) Does not depend on k
b) Increases with k
c) Decreases with k
d) Cannot be determined without additional information. Lottery balls are numbered and coloured balls. In the famous Lotto, six numbered balls are
drawn at random from 49 balls. In each ticket one needs to guess the six numbers that
would be drawn. If no correct guesses are received the prize money is carried to the next
draw. It is not uncommon to see prize money accumulating to several millions of dollars. An
urn contains m white and n black balls. A ball is drawn at random and is put back into the
urn along with k additional balls of the same colour as that of the ball drawn. A ball is again
drawn at random. The probability of drawing a white ball now:
a) Does not depend on k
b) Increases with k
c) Decreases with k
d) Cannot be determined without additional information In how many ways can the letters of the English alphabet be arranged so that are seven letters between the letters A and B, and no letter is repeated?
o 18*241
o 36*241
o 24p7*2*18!
o 24P7*2*20!