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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Rahul kumar Best Answer
Answer = 5, The question is itself mentioning the answer. They have mistakenly written the number of phases=5, which is the answer in actual. As you know that, F=C-P+2, for invariant point F=0, C=3 given in the question. So, P= C-F+2 = 5.
thank u so much sir.i got it