Question

Out of all the instruments, the number of guitars in the music room is the most. The number of guitars is 3 more than the number of drums, 1 more than the number of pianos, and 2 more than the number of flutes.


(i) Is this picture table correct?
(ii) If no, then what can be done to correct it?
Hint: More than one option can be correct.

• A. Add one star on “Guitar”.
• B. Take away one star from “Piano”.
• C. Take away one star from “Drums”.
• D. The picture table is correct.

Answer 1

Answer: (A), (B)

Take away one star from “Piano”.

Say: We know that out of all the instruments, the number of guitars in the music room is the maximum. The number of guitars is 3 more than the number of drums, 1 more than the number of pianos, and 2 more than the number of flutes.

Steps:
- In the picture graph, we can see:
- Guitars: 6
- Drums: 4
- Pianos: 7
- Flutes: 5
- The guitars in the music rooms are maximum in number, and they are 3 more than the number of drums, 1 more than the number of pianos, and 2 more than the number of flutes. There are 4 drums and 5 flutes.
- As per this, the correct numbers should be:
- Guitars: 3 + 4 = 7
- Drums: 4
- Pianos: 7 - 1 = 6
- Flutes: 5
- To correct the picture table, if we remove 1 star from “Piano” and add it to “Guitars”, the numbers will be correct.
- This is suggested in options B and D.
- Hence, options B and D are correct.

Probing:
Q: If we take any one of the correct options and apply it, will it make the picture table correct?
A: No! Both the options need to be applied.