Discussion

Explanation:

is ≡ 35 and as ≡ 56 ⇒ s ≡ 5

∴ a ≡ 6 and i ≡ 3

Letters ‘i’ and ‘d’ are common in words ‘bird’ and ‘india’. Numbers ‘1’ and ‘3’ are common in there codes. We know that i ≡ 3. Therefore, d ≡ 1. Also, br = 34

India ≡ 13366, d ≡ 1 a ≡ 6 and i ≡ 3 ⇒ n = 6

of ≡ 79 means o = 7 or 9

As peacock ≡ 5688999, code for ‘o’ must be ‘9’. Therefore, ‘f ≡ 7’.

national ≡ 13666689, a ≡ 6, i ≡ 3 , o ≡ 9 and n = 6 ⇒ tl ≡ 19

the ≡ 458 and tl ≡ 18 ⇒ t ≡ 8 and hence, l ≡ 1

Consider designated ≡ 1135556678.

As d ≡ 1 a ≡ 6, i ≡ 3, n ≡ 6, s ≡ 5, t ≡ 8; eeg ≡ 557. Therefore, e ≡ 5 and g ≡ 7

Now in peacock ≡ 5688999 we know codes for letters e, a, and o.

Therefore, pcck ≡ 8899 i.e., c = 8 or 9

If c ≡ 8, 9 codes both ‘p’ and ‘k’. As ‘9’ codes two letters and one of them in ‘o’, it can not be code for both ‘p’ and ‘k’. Hence, ‘c’ must be coded as 9. And 8 must be the code for both ‘p’ and ‘k’.

Thus, we have

br = 34 and

1 ≡ d, l

3 ≡ i

5 ≡ s, e

6 ≡ a, n

7 ≡ f, g

8 ≡ t, p, k

9 ≡ o, c

The code for the letter B = 3 or 4.

Hence, option (c).

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