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The logic followed here is:

Logic: Echo is the result of sound bouncing off a surface, and reflection is the result of a medium bouncing off a surface.

Here,

Echo : Sound → Echo is the result of a sound wave bouncing back.

Similarly,

Reflection : Light → Reflection is the result of a light wave bouncing back.

Hence, the correct answer is "Option 3".

Given Statements:

All roses are flowers.

Some flowers are red.

The least possible Venn diagram for the given statements is:

Conclusions:

I. Some roses are red. → False (there is no definite relationship between roses and red things. Therefore, we cannot definitively conclude that some roses are red.)

II. All red things are flowers. → False (The statement says "Some flowers are red," which means only a part of the flowers are red. It does not mean that all red things are flowers. So we can't say that "All red things are flowers.")

Therefore, neither conclusion I nor conclusion II follows.

Hence, the correct answer is "Option 4".

Additional Information

Given: Six friends, K, M, P, R, T, and Y, are sitting in a circle facing the center.

R is sitting to the immediate left of M.

K is second to the right of M.

P is not sitting next to K or M.

T is sitting exactly between M and K.

And Y sits at the remaining place.

T is sitting opposite to P.

Hence, the correct answer is "Option 4".

Calculations:

⇒ Input: 93 box 27 pink 46 green 18

⇒ Step 1: Swap 1^st two elements

⇒  box 93 27 pink 46 green 18

⇒ Step 2: Bring last word forward 

⇒ box 93 green 27 pink 46 18

⇒ Step 3: Bring next last number forward

⇒ box 93 green 46 27 pink 18

⇒ Step 4: Bring next last word forward

⇒ box 93 green 46 pink 27 18

∴ Step 4 = box 93 green 46 pink 18 27

Given Input: 8 cake 12 bag 5 apple

The pattern followed here is:

The input is a series of number-word pairs. The rearrangement sorts these pairs based on two rules:

1) Numbers are sorted in ascending order.

2) The words associated with the numbers are sorted in alphabetical order.

Input: 8 cake 12 bag 5 apple

Original Pairs: (8, cake), (12, bag), (5, apple)

Sorting by number (ascending): (5, apple), (8, cake), (12, bag)

Step 1: 5 apple 8 cake 12 bag

This shows the numbers are sorted in ascending order. Now, let's examine the words.

The words are "apple", "cake", and "bag". Alphabetical order for these words would be "apple", "bag", "cake".

Step 2: 5 apple 8 bag 12 cake

In this step, the words are re-arranged to follow alphabetical order: "apple", "bag", "cake".

This proves that the logic is to sort "Numbers in ascending order; words in alphabetical order".

Hence, the correct answer is "Option 4."

The logic followed here is digit-wise addition of +2 to each digit of the number:

58214 : 70436

→ 5 + 2 = 7, 8 + 2 = 10 (unit digit = 0), 2 + 2 = 4, 1 + 2 = 3, 4 + 2 = 6

Similarly,

73928 : ?

→ 7 + 2 = 9, 3 + 2 = 5, 9 + 2 = 11 (unit digit = 1), 2 + 2 = 4, 8 + 2 = 10 (unit digit = 0) 

So, 73928 ⇒ 95140

Hence, "Option 3" is the correct answer.

The logic followed here is,

After putting the option 3) e48fghij

Hence, the correct answer is "Option 3".

Given the expression: 28 - 4 ÷ 8 + 16

Decoding the given information:

Replacing the signs in the expression according to the given rules:

The expression 28 - 4 ÷ 8 + 16 becomes:

28 × 4 + 8 - 16

Now, applying the BODMAS rule:

⇒ 28 × 4 + 8 - 16

⇒ 112 + 8 - 16

⇒ 120 - 16 = 104

Hence, the correct answer is "Option 1".

Given Statements:

All chairs are furniture.

Some furniture are tables.

The least possible Venn diagram for the given statements is:

Conclusions:

I. Some tables are chairs. → False (There is no direct relation between chairs and tables. It's a possibility, but not a definite conclusion.)

II. All chairs are tables. - False (There is no direct relation between chairs and tables. It's a possibility, but not a definite conclusion.)

Therefore, neither conclusion I nor conclusion II follows.

Hence, the correct answer is "Option 1".

The logic followed here is:

We can find the rank from the bottom by using the following formula:

Rank from the bottom = (Total number of students) - (Rank from the top) + 1

Given:

Total number of students = 30

Priya's rank from the top = 12^th

Applying the formula:

Rank from the bottom = 30 - 12 + 1

= 18 + 1 = 19

So, Priya's rank from the bottom is 19^th.

Hence, the correct answer is "Option 2".