In a certain code language, '527' means 'Tea is hot', '28' means 'hot milk', and '859' means 'milk is dense'. Which digits indicate 'tea' and 'dense' respectively?

A'2' and '7'

B'7' and '9' ✓ Correct

C'9' and '8'

D'8' and '5'

Correct answer: (B) '7' and '9'

Explanation

Tea is 7 and dense is 9.

'527' and '28' share only 2, so 2 = hot.

'28' and '859' share only 8, so 8 = milk.

'527' and '859' share only 5, so 5 = is.

In '527' the leftover 7 = tea; in '859' the leftover 9 = dense.

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