The sum of 25 percent of 36 and 75 percent of 56 equals

Question

A. 23
B. 37
C. 41
D. 51
E. 69

PS21230

Ravixxx · Answer

\frac{25}{100}= \frac{1}{4}

\frac{75}{100}= \frac{3}{4}

\frac{1}{4}*36 + \frac{3}{4}*56 = 
 9 + 42 = 51

Answer D

yashikaaggarwal · Answer

=>> 36*1/4(25%) = 9
=>> + 56*3/4(75%) = 42
=>> Sum 9+42=51
Answer is B

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chetan2u · Answer

Keep a note.. 25%=\frac{1}{4} 50%=\frac{1}{2} 75%=\frac{3}{4} 33.33..%=\frac{1}{3} 66.66..%=\frac{2}{3} 12.5%=\frac{1}{8} sum of 25 percent of 36 and 75 percent of 56=25% of 36+75% of 56= \frac{1}{4}*36+\frac{3}{4}*56=9+42=51 Just for those learning about Weighted average method.

Here sum of 25 percent of 36 and 75 percent of 56 tells us that we are adding 1 part of 36 with 3 parts of 56, so weighted average tells us => 36+\frac{56-36}{1+3}*3=36+\frac{20}{4}*3=36+15=51

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The sum of 25 percent of 36 and 75 percent of 56 equals

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The sum of 25 percent of 36 and 75 percent of 56 equals

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