Question Discussion & Solution

• The blue litmus paper will turn red when it comes into contact with an acidic solution.
• When a litmus paper is put in a solution, depending on what the solution is, the indicator will react with the solution and will change its colour.
• On the other hand, red litmus paper reacts to alkaline substances by turning blue.
• Note: Acid will turn red litmus paper to red only.No change.

The correct answer is Daya Bai.

Key Points 

• Daya Bai-
  • She was born in Dehra village, Alwar.
  • She was the disciple of Charandas ji.
  • The Daya Bodh and Vinaya Malika texts were written by her.

Additional Information 

• Meera Bai was a disciple of Sant Raidas Ji, Tika Ra Govinda, Narsi Mehta Ri Hundi, Rukmani Mangal, and Meera Padvaliya were written by her.
• Ratan Kumari Jhali was the disciple of Raidas Ji and was Mirabai's mother-in-law.
• Sahajo Bai was the disciple of Charandas Ji.
  • Sahaj Prakash Granth was written by her.

All the given number is square of some number – 1 except ‘257’

120 → (11)² – 1

257 → (16)² + 1

440 → (21)² – 1

323 → (18)² – 1

After reading statement and conclusions we decide that -

i) All women are scientists.→ False 

ii) All scientists are women.→ False

Hence, option 4 is the correct answer.

CONCEPT:

• The Correct Answer is Option (3) i.e. 1-d, 2-c, 3-b, 4-a.