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ATQ, Let the efficiency of Binni be x So, the efficiency of Anu = 4x Effective efficiency of the them = x + 4x = 5x Total work = 12 × 5x ⇒ 60x units Now, Time taken by Anu to complete the work alone = 60x/4x ⇒ 15 hours
Why do metals conduct electricity?
Which of the following metals forms an amphoteric oxide?
In the synthesis of aspirin (acetylsalicylic acid) from salicylic acid, which reagent is used?
How can a mixture of sand and salt be separated?
Choose the wrong statement
Statement I: Glass is not considered as a true compound. Statement II: Glass does not have a definite melting point.
Codes:
Which of the following is arranged in order of decreasing conductivity?
Which drug is used as an anti-inflammatory?
Which of the following has the lowest ionization enthalpy?
Which of the following is an example of a colloidal solution?