1. The average of six consecutive even numbers is 25. If the next even number is also considered, what is the new average ?
Write Comment
Comments
By: anil on 05 May 2019 02.27 am
Let the six consecutive even numbers be $$(x-5),(x-3),(x-1),(x+1),(x+3),(x+5)$$ Average = $$frac{(x-5)+(x-3)+(x-1)+(x+1)+(x+3)+(x+5)}{6}=25$$ => $$frac{6x}{6}=25$$ => $$x=25$$ Thus, numbers = 20,22,24,26,28,30 If we include the next number, new sum = $$150+32=182$$ $$ herefore$$ New average = $$frac{182}{7}=26$$ => Ans - (C) Shortcut : Average of six consecutive even numbers = 25 => 3rd and 4th numbers are = 24 and 26 => Numbers = 20,22,24,26,28,30 If we include next number, = 20,22,24,26,28,30,32 New average = middle number = 26
Terms And Service:We do not guarantee the accuracy of available data ..We Provide Information On Public Data.. Please consult an expert before using this data for commercial or personal use