1. Of the 5 numbers whose average is 72, the first is 1/8 times the sum of other 4. The first number is .---------------
Write Comment
Comments
By: anil on 05 May 2019 02.10 am
Let the first number be $$x$$ and sum of other four numbers be $$y$$ => Average of five numbers = $$frac{x + y}{5} = 72$$ => $$x + y = 72 imes 5 = 360$$ ------------(i) According to ques, => $$x = frac{1}{8} imes y$$ => $$y = 8x$$ Substituting value of $$y$$ in equation (i), we get : => $$x + 8x = 360$$ => $$x = frac{360}{9} = 40$$
=> Ans - (C)
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
=> Ans - (C)