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ATQ, Total work = 24 units (LCM of 8 and 24) Efficiency of human 'E' = 24/8 = 3 units/hour Efficiency of human 'F' = 24/24 = 1 unit/hour Time taken by humans 'E' and 'F' to complete the work together = 24/(3 + 1) = 6 hours Time taken by the robot = 6 hours
Which of the following part of the earth doesn’t allow the S wave to pass through itself?
Which of the following process is involved in the manufacturing of iron from iron-ore?
The pioneer of Atomic energy in India is
1 mole of carbon atoms = ______ g of carbon atoms
ELISA test can be used to diagnose :
Bulb is an underground condensed
Which of the following is correct regarding frequency?
I. Frequency is expressed in hertz
II. A frequency of 1 Hz is one oscillation per minute
Which of the following is the ratio of Oxygen to Nitrogen in the air?
Which of the following substance produces brisk effervescence when treated with baking-soda solution?