three Bells toll at intervals of 9,12,15 minutes. If they start tolling together,after what time will they next toll together?
1 hour
1•5 hours
2•5 hours
3 hours

VISWMA DEY

3hrs

Shayantani chowdhury

the average of first 51 nature numbers is 26,what is the average of first 50 nature numbers?
24
24•5
25•5
25

VISWMA DEY

25..5

Shayantani chowdhury

right

Santanu Roy

A dishonest dealer defrauds his seller and buyer by using forged weights to the extent of 20%.
His true gain percent is –
(a) 20% (b) 40% (c) 44% (d) 50%

VISWMA DEY

c

Santanu Roy

D bolche

Shayantani chowdhury

44%

Santanu Roy

P is greater than Q by 60% and grater than R by 30%. The ratio of Q and R is –
(a) 1 : 2 (b) 2 : 1 (c) 13 : 16 (d) 16 : 13

ananya sarkar

c

Shayantani chowdhury

c

Santanu Roy

By logic which of the action follows fromt he statement
Youngsters are often found staring at obscene posters
Courses of Action:
(i) Youngsters should be punished and penalised if they are found doing so.
(ii) Any display of such material should be banned.
Options :
(a) Only (i) follows (b) Only (ii) follows
(c) Neither (i) nor (ii) follows (d) Action (ii) partially follows

ananya sarkar

getting 2 types of answers…but majority says option b

VISWMA DEY

bad things attract youngsters easily. punishment after the act has been committed is no remedy i think. sp, the act should be prevented..therefore, iption b follows

ananya sarkar

8. A can do a piece of work in 25 days and B can finish it in 20 days. They work together for 5 days
and then A leaves. In how many days will B finish the remaining work?
(a) 8 (b) 9 (c) 10 (d) 11

Santanu Roy

D

Santanu Roy

Propositions:
Some pearls are stones Some stones are diamond
No diamond is a gem.
Conclusions : (i) Some gems are pearls (ii) Some gems are diamond
(iii) No gem is a diamond (iv) No gem is a pearl
Options:
(a) Only (i) and (II) follows (b) Only (iii) and (iv) follows
(c) Only either (i) or (iv) and either (ii) or (iii) follows
(d) Only (iii) and either (i) or (iv) follows

ananya sarkar

d

Santanu Roy

Many business offices are located in building having two to eight floors. If a building has more
than three floors, it has a lift.
Conclusions:
(a) All floors may be reached by lift (b) Only floors above third floor have lift
(c) Seventh floor has no lift (d) Second floor has lift

2014 to 2017 any doubt?

..

three Bells toll at intervals of 9,12,15 minutes. If they start tolling together,after what time will they next toll together?

1 hour

1•5 hours

2•5 hours

3 hours

3hrs

the average of first 51 nature numbers is 26,what is the average of first 50 nature numbers?

24

24•5

25•5

25

25..5

right

A dishonest dealer defrauds his seller and buyer by using forged weights to the extent of 20%.

His true gain percent is –

(a) 20% (b) 40% (c) 44% (d) 50%

c

D bolche

44%

P is greater than Q by 60% and grater than R by 30%. The ratio of Q and R is –

(a) 1 : 2 (b) 2 : 1 (c) 13 : 16 (d) 16 : 13

c

c

By logic which of the action follows fromt he statement

Youngsters are often found staring at obscene posters

Courses of Action:

(i) Youngsters should be punished and penalised if they are found doing so.

(ii) Any display of such material should be banned.

Options :

(a) Only (i) follows (b) Only (ii) follows

(c) Neither (i) nor (ii) follows (d) Action (ii) partially follows

getting 2 types of answers…but majority says option b

bad things attract youngsters easily. punishment after the act has been committed is no remedy i think. sp, the act should be prevented..therefore, iption b follows

8. A can do a piece of work in 25 days and B can finish it in 20 days. They work together for 5 days

and then A leaves. In how many days will B finish the remaining work?

(a) 8 (b) 9 (c) 10 (d) 11

D

Propositions:

Some pearls are stones Some stones are diamond

No diamond is a gem.

Conclusions : (i) Some gems are pearls (ii) Some gems are diamond

(iii) No gem is a diamond (iv) No gem is a pearl

Options:

(a) Only (i) and (II) follows (b) Only (iii) and (iv) follows

(c) Only either (i) or (iv) and either (ii) or (iii) follows

(d) Only (iii) and either (i) or (iv) follows

d

Many business offices are located in building having two to eight floors. If a building has more

than three floors, it has a lift.

Conclusions:

(a) All floors may be reached by lift (b) Only floors above third floor have lift

(c) Seventh floor has no lift (d) Second floor has lift

b