TTT : 777 : : RRR : ?

555

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666

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888

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999

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Solution

The correct option is D 999
If we code
Z = 1
Y = 2
X = 3
W = 4
V = 5
U = 6
T = 7
S = 8
R = 9
So, RRR = 999

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Similar questions

7 + 77 + 777 + \dots \dots + (777 \dots 7 n

) =

\underset{n - digits}{. . . . . . . . . . .} 7 = \frac{7}{81} (10^{n + 1} - 9 n - 10)

Prove that $7 + 77 + 777 + . . . . . . + 777 . . . . . . . . . . . . . n - d i g i t s 7 = \frac{7}{81} (10^{n + 1} - 9 n - 10)$

7 + 77 + 777 + 7 \times 9 + 77 \times 99 + 777 \times 999

\sum_{r = 1}^{15} \frac{r 2^{r}}{(r + 2)!}

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