Question

If in the above piles of bricks, $4$ bricks are taken away from E and added to A, which options given below will be true?

• A. E will become the shortest pile.
• B. There will be no tallest pile.
• C. Pile A and D will be of the same height.
• D. All of the above.

Answer 1

The correct option is D All of the above.

All of the above
Say:
On the screen, we have five piles of bricks, arranged in increasing order of their length.

Steps:
Let us first find out how many bricks are there in each pile.
Pile $A:3$
Pile $B:5$
Pile $C:6$
Pile $D:7$
Pile $E:8$

If $4$ bricks are taken away from E and added to A, then let us see how many bricks are there in each pile now.
Pile $A:3+4=7$
Pile $B:5$
Pile $C:6$
Pile $D:7$
Pile $E:8-4=4$
As per the new numbers, the new order will be:
E, B, C, D, A where pile D and A have the same number of bricks.
This makes all the options true.
Thus, option D is the correct answer.


Probing Q: The new arrangement will be E, B, C, D, A. Though A and D have the same number of bricks, the arrangement of shortest to tallest cannot be E, B, C, A, D. Am I correct?

A: No! Since both the piles A and D have the same number of bricks, any one of them can come at the end of the sequence.