Position from right = Total - Position from left + 1 = 10 - 7 + 1 = 4

Pattern: Each set is n, 2n, 3n. For 5, it should be 5, 10, 15

Each letter is coded by its position in the alphabet. O=15, R=18, A=1, N=14, G=7, E=5

121(11²), 144(12²), 169(13²), 196(14²) are perfect squares. 220 is not a perfect square.

Some employees are managers, but not all. So we cannot conclude that all employees are leaders.

Ephemeral means short-lived or temporary. Transient has the same meaning. Other options mean lasting or permanent.

Verbose means using many words. Laconic means brief or using few words - the opposite meaning.

'A modest' is grammatically correct. 'Modest' starts with a consonant sound, so we use 'a' not 'an'.

The passage explains that climate change affects different regions differently - some get more rain (floods) while others get less (droughts).

'Each' is singular, so it should be 'is' not 'are'. Correct sentence: 'Each of the students is required to submit their project by Friday.'