Cryptarithmetic problems — task. Maths CBSE Live product, Class 7 (2026-27).

Solve the following:

(a) $\begin{array}{l} A B \\ + C B \\ \bar{\underline{B B A}} \end{array}$

$A = i, B = i, C = i$

(b) $\begin{array}{l} A 9 \\ + 9 C \\ C A \\ \bar{\underline{A 9 C}} \end{array}$

$A = i, C = i$

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9. Cryptarithmetic problems