Here I go :
$3 + 5 + 6 = 15 \ 18 \ 72$
$5+ 5 + 6 = 25 \ 30 \ 94$
$5 + 6 + 7 = 30 \ 35 \ 85$
$5 + 5 + 3 = 25 \ 15 \ 73$
$9 + 4 + 7 = 36 \ 63 \ ? $
Replace ? with appropriate number
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$\begingroup$ Do you mean digit or number? $\endgroup$– M OehmCommented Jul 14, 2016 at 7:06
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2 Answers
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Answer is
$29$
Explanation:
The formula is:
$a + b + c = a*b \quad a*c\quad ((a*b) + (a*c)) - c$
Take the example of the first row
$3 + 5 + 6 = 15$ $18$ $72$
Let $a = 3, b = 5 , c = 6$
$((3*5) + (3*6)) - 6 \Rightarrow (15 + 18) - 6 \Rightarrow 33 - 6 \Rightarrow 27$
Reverse of $27$ is $72$
In the same way for the last row
For $9 + 4 + 7 = 36$ $63$ $?$
$((9*4) + (9*7)) - 7 \Rightarrow (36 + 63) - 7 \Rightarrow 99 - 7 \Rightarrow 92$
reverse of $92$ is $29$
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2
for the missing value
173.32
because
for the third column I get $$26.4 * a - 0.6*b + 7c -3.08ab$$
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3$\begingroup$ I thinnk you are unnecessarily making it more difficult. $\endgroup$ Commented Jul 15, 2016 at 2:36
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1$\begingroup$ simpler or more complex is in the eye of the beholder. $\endgroup$– JasenCommented Jul 15, 2016 at 2:37