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X :Y = 5:1, XY = 320 ആയാൽ X, Y എത്ര?

A16,20

B8,40

C40,8

D20,16

Answer:

C. 40,8

Read Explanation:

a : b = c : d ആയാൽ ad = bc ആയിരിക്കും X =5Y XY = 5Y × Y= 320 Y² = 320/5 = 64 Y = 8 X = 5Y = 40


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