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🎉 Great news! 2 doubts resolved in last 10 minutes
R
Ritvik
15 May 2026

Resolved in 2m

Question:

There are 7 letters that are named from 1 to 7 and 7 envelopes that are named from A to G. Find the number of ways of putting the letters in an envelope such that each envelope contains 1 letter and letters 1, 2, 3 are not in envelopes A, B, C respectively.

A

3216

B

3280

C

5040

D

3210

Doubt

Hi, can this question be solved by distinct-to-distinct method? ....................................................


K
KAREENA
15 May 2026

Resolved in 2m

Question:

Two racers are running to and fro from points A and B at 3m/s and 7m/s respectively. If the distance between A and B is 2000m, what is the total distance covered by both the racers, till they meet for the 2nd time?

A

6000m

B

5000m

C

4420m

D

5500m

Doubt

Using the method above, How can i find the distance travelled by A since x= 1800/7 metres ? Please explain the solution further using the method attached in the picture above


A
abdul
15 May 2026

Resolved in 3m

Question:

Preetha starts from her home and walks 20 m towards the West. She takes a right turn and walks 15 m. Then, she takes a left turn and walks 20 m. Finally, she takes a left turn and walks 45 m. How far is she from the starting point and which direction is she facing now?

A

50 m, South

B

50 m, South West

C

100 m, South

D

100 m, South West

Doubt

Shouldn't the answer be 50 m, south west? Because he has also moved in the west direction from initial point


N
naveen
16 May 2026

Resolved in 5m

Question:

ΔABC is similar to ΔPQR. If ratio of area of ΔABC, area of ΔPQR is 4:9 and if PQ = 6 cm, then the length of AB (in cm) is?

A

4

B

2

C

8

D

12

Doubt

why triangle DEB triangle DBE is also similar ABC


K
KAREENA
15 May 2026

Resolved in 7m

Question:

Babu sets his wall clock to 3:00 PM. After $$\dfrac{60}{11}$$ minutes, he notices that the distance between the tips of the hours hand and the minutes hand is 20 cm; if the length of the minute hand is twice the length of the hour hand, what is the sum of the lengths (in cms.) of both the hands?

A

$$20\sqrt{\ 3}$$

B

$$20\sqrt{\ 2}$$

C

$$\dfrac{20}{\sqrt{\ 3}}$$

D

$$\dfrac{20}{\sqrt{\ 2}}$$

Doubt

Can you please explain the cosine rule used to solve this question? Also is there any other method apart from cosine rule??????????????????????


A
Ayush
16 May 2026

Resolved in 7m

Question:

If Ajay won the tournament in the year 2015, then who won the tournament in the year 2016?

A

Bhushan

B

Govind

C

Rakesh

D

Cannot be determined

Doubt

sir will this type of questions come in cat .................................................... .


R
Ritvik
16 May 2026

Resolved in 7m

Question:

In how many ways can 20 chocolates be distributed among 4 children, such that each child gets at least 1 chocolate and at most 10 chocolates?

A

$$^{19} C _3$$ - $$^8 C _4$$

B

$$^{19} C _3$$ - $$^9 C _3$$

C

$$^{19} C _3$$ - $$ ^8 C _4*4$$

D

$$^{19} C _3$$ - $$^9 C _3*4$$

Doubt

Why is the case of only 11 chocolates taken, why not if any child gets 12 or 13.....20?....................................


A
Ajay
16 May 2026

Resolved in 8m

Question:

Amar’s farm has a central tower of height 60 m. If Amar wants to tie a rope from the top of the tower to a point 11 m from the base of the tower, what will be the minimum length of the rope required?

A

62 m

B

61 m

C

63 m

D

64 m

Doubt

If 61 m is used to connect the points but to tie the rope, we need >61m rope.


U
Ujjwal
16 May 2026

Resolved in 9m

Question:

Which of the following is the main point that the author wants to convey through the first paragraph?

A

One might think that successful students are passionate about their schooling, but in most cases, this is not true.

B

Passion is what makes challenges enjoyable and it also gives the energy required to excel. However, the inverse is true in the case of academic success.

C

A student need not be passionate about schooling to be academically successful.

D

The author's research suggests that passion for schooling does not determine how well a student does in his later life.

Doubt

Hello
In option A nowhere it is mentioned that the inverse relation is true. It is just mentioning the correlation between passion and academic excellence is not highly correlated which is give in option a.


A
Abhishek
15 May 2026

Resolved in 11m

Question:

Which of the following can be inferred from the passage?

A

Hinduism bases its arguments on the Upanishads.

B

Being a celibate from boyhood, Shankara did not have any knowledge regarding corporeal matters.

C

Historically the contributions of female philosophers in ancient India went unrecognised. 

D

Maitreyi believed that possessing all the wealth in the world would make her immortal.

Doubt

In question 1, inference one, how is option C correct since "ancient india" is not mentioned in passage.


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