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ഒരു ക്ലാസ്സിലെ ആൺകുട്ടികളുടെയും പെൺകുട്ടികളുടെയും അനുപാതം 4 : 5 ആണ് ആ ക്ലാസ്സിലെ പെൺകുട്ടികളുടെ എണ്ണം 20 ആയാൽ ആൺകുട്ടികളുടെ എണ്ണം എത്ര ?

A16

B25

C45

D30

Answer:

A. 16

Read Explanation:

ആൺകുട്ടികളുടെയും പെൺകുട്ടികളുടെയും അനുപാതം = 4 : 5 = 4x : 5x പെൺകുട്ടികളുടെ എണ്ണം 20 5x = 20 X = 20/5 = 4 ആൺകുട്ടികളുടെ എണ്ണം 4x = 16


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