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Three numbers are in the ratio 4:5:6, and the average is 25. The largest number is

A42

B30

C36

DNone of these

Answer:

B. 30

Read Explanation:

Let three numbers are 4x, 5x and 6x Sum of 3 numbers = 25x3=75 4x+5x+6x=75 15x=75 x=75/15 =5 The largest number= 6x=6*5=30


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പരീക്ഷയിൽ പങ്കെടുത്ത 210 വിദ്യാർത്ഥികളുടെ ശരാശരി മാർക്ക് 45 ആണ്. പരാജയപ്പെട്ട വിദ്യാർത്ഥികളുടെ ശരാശരി മാർക്ക് 27ഉം വിജയിച്ച വിദ്യാർത്ഥികളുടെ ശരാശരി മാർക്ക് 54 ഉം ആണ്. വിജയിച്ച വിദ്യാർത്ഥികളുടെ എണ്ണം എത്രയാണ് ?