He h.C.F and l.C.M of two numbers are 84 and 21 respectively. If the ratio of the two numbers is 1:4, then the larger of the two numbers is?
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Answer:
H.C.F × L.C.M = PRODUCT OF NUMBERS
==> 84×21 = 1X × 4X
==> 1764 = 4X²
==> 1764/4 = X²
==> √441 = X
==> 21 = X
TWO NUMBERS
==> 1X ==> 1(21) ==> 21
==>4X ==> 4(21) ==> 84
SO, THE LARGER NUMBER = 84
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