Question

In a certain code HINDU is written as 61257 , MAN is written as 924 then the word INDIRA will be coded as:

(A) 454626 (B) 594921 (C) 452787 (D) 884572

Answer 1

N is common to HINDU and MAN, so N = 2. INDIRA has two I, which is common with HINDU. So INDIRA should contain 2 and one of (6,1,5,7) repeated twice. A in INDIRA is common with MAN, so INDIRA should contain 2 , one of (6,1,5,7) repeated twice one of (9,4) only once. We can see that only 452787 satisfies these conditions. So (B) is the ANSWER.

Answer 2

Coding Decoding

(c) 452787

HINDU is written as 61527.

MAN is written as 924.

As we can see that HINDU and MAN has only one letter in common and that is N, so we need to check the numerical value of each, we can see that 2 is the only common . Hence N is for 2.

• Hence N is also in INDIRA, which means 2 will be there in Indira.
• The I letter occurs twice  in INDIRA, which means either of these digits (6, 1, 5 ,7) will occur twice.
• This means value of  of INDIRA should contain at least one 2 and either 6,1, 5, 7 occurs twice.

These all conditions is only followed by  (c) 452787.