Question { TCS, 23251 }

) Peter and Paul are two friends. The sum of their ages is
42 years. Peter is twice as old as Paul was when Peter was
as old as Paul is now. What is the present age of Peter?

Answer

Peter is twice as old as Paul was when Peter was
as old as Paul is now.

the above sentence is wrong.

Question { TCS, 9587 }

A horse chases a pony 2 hours after the pony runs. Horse
takes 4 hours to reach the pony. If the average speed of
the horse is 81 kmph, what s the average speed of the pony?

Answer

pony = 2 hours + 4 hours= 6 hours.
horse= 4 hours= 4 hours.

4*81=324
324/6=54=>average speed of pony.

Question { TCS, 7822 }

One day Alice meets pal and byte in fairyland. She knows
that pal lies on Mondays, Tuesdays and Wednesdays and
tells the truth on the other days of the week byte, on the
other hand, lies on Thursdays, Fridays and Saturdays, but
tells the truth on the other days of the week. Now they
make the following statements to Alice – pal. Yesterday was
one of those days when I lie byte. Yesterday was one of
those days when I lie too. What day is it???

Answer

Thursday

Question { 3944 }

what is the cost of 475.5rs share with 4%discount and
1/4%brokerage

Answer

475.5 share with 4% discount = (475.5*4)/100 =19.02

and 1/4% brokerage, so 19.02/4=4.755

The cost is 475.5-(19.02+4.755)=451.725

Question { 12681 }

3 men are running in circle man A run with 20m/hr, man B run
with 40m/hr, man C run with 50 m/hr , and the radius of
cirlce is 200m then at what time they will meet together

Answer

A=20m/hr
B=40m/hr
C=50m/hr

length of circle that is 200.

the circle is 200m
if A take 10hr it reach the circle,
10*20=200 mod 200=0 (here mod is modulus)

if B take 10hr it reach the circle,
10*40=400 mod 200=0

if C take 10hr it reach the circle,
10*50=500 mod 200=100.

so from the above, take 20hr for A,B,C

A=>20*20=400 mod 200=0
B=>20*40=800 mod 200=0
C=>20*50=1000mod 200=0

so all are meet after 20hr.