Ans. 66 sec. 2 marks.
2)Three friends divided some bullets equally. After all of them shot 4
bullets the total no.of remaining bullets is equal to that of
one has after
division. Find the original number divided.
Ans.
x
x x
x-4 x-4
x-4
3x-12 = x
x= 6
ans is
18
2 marks
3)A ship went on a voyage after 180 miles a plane statrted with 10 times speed that of the ship. Find the distance when they meet from starting point.
Ans. 180 + (x/10) = x
x = 20
ans is
180+20=200miles.
2 marks
4) Fill the empty slots.
Three FOOTBALL teams are there. Given
below the list of maches.
played
won lost draw Goals
for Goals against
A
2 2
*0 *0
*7
1
B
2 *0
*1
1
2
4
C
2 *0
*1 *1
3
7
the slots with stars are answers. 4 marks
BC drew with
2-2
A won on B by 2-0
a won on C by 5-1
( YOU HAVE TO FILL THE
BLANKS AT APPROPRIATE STAR SYMBOLS.)`
5)
There are 3 societies a,b,c. a lent tractors
to b and c as many as they had. After some time b gave as many tractors to
a and c
as many as they have. After sometime c did the same thing. At
the end of this transaction each one of them had 24.
Find the tractors each
orginally had.
Ans a had 39, b had 21, c had 12, 4 marks
6)
There N stations on a railroad. After adding x
stations 46 additional tickets have to be printed. Find N and X.
Ans. let N(N-1) = t;
(N+x)(N+x-1) = t+46;
trail and error
method x=2 and N=11 4 marks
7)Given that April 1 is tuesday. a,b,c are 3 persons told that their farewell
party was on
a - may 8, thursday
b - may
10,tuesday
c - june 8, friday
Out of a,b,c one is only
correct one of the regarding month,day,date.
Other told two correct and the
third person told all wrong.What is
correct
date,month,day.
5 marks
(ans may be MAY 10 SUNDAY. check once
again)
8)
There are 4 parties. df,gs,dl(depositloss),ew
ran for a contest. Anup,Sujit,John made the following statements regarding
results.
Anup said either df or ew will definitely win
Sujit said he is
confident that df will not win
John said he is confident that neither ew nor
dl will win
The result has come. Only one of the above three has made
a correct statement.
Who has made the correct statement
and who has won the
contest.
5 marks.
(ans DL )
9)
Five people a,b,c,d,e are related to each other.
Four of them make one true statement each as follows.
i) b is my father's
brother. (ans. d said
this)
ii)e is my
mother-in-law. (
b )
iii)c is my
son-in-law's brother. (
e )
iv)a is my brother's
wife. (c)
10 marks.
10)
All members of d are also
members of a
All
'' e
''
d
All
'' c
''
both a and b
not all
'' a are members of d
not all ''
d
'' e
Some
questions on these conditions.(5questions 5 marks)
11)
Boys are allowed to watch football at C.V.Raman
auditorium subjected to conditions.
i)the boy over age 16 can
wear overcoat
ii)no boy over age 15 can wear cap
iii)to watch the football either he has to wear overcoat or cap
or both
iv) a
boy with an umberella or above 16 or both cannot wear sweater.
v) boys must either not watch football or wear sweater.
What is the appearence of the boy who is watching football.
Try to solve this question................
YOU HAVE TO DO SOME ROUGH WORK FOR EACH QUESTION . IT WILL
CARRY
SOME GRACE MARKS.