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P’s one day’s work = 1/48days Q’s one day’s work = 1/60days R’s one day’s work = 1/80days Then, (x -12)/48 + (x - 16)/60 + (x )/80 = 1 (5(x-12)+4(x-16)+3x)/240 = 1 5x – 60 + 4x – 64 + 3x = 240 12x = 240 + 124 12x = 364 x = 364/12 x=91/3 ∴x = 30(1/3) days
Which of the following elements is NOT a zero-group element?
Match the following gases with their typical uses:
List I (Gas) List II (Uses)
A) A...
How many periods are there in the Modern Periodic Table?
Which of the following is NOT a physical change?
Which element is used in pencil leads?
Malathion is primarily used as a/an:
The Nuclear Fusion on the Sun’s surface result into formation of Atoms.
What change occurs when camphor is heated?
The atoms which contains same number of Electrons are known as:
Which of the following statements about colloids is NOT true?