Series & analogies MCQ with Answers

Explanation

Each term = previous × 3 − 1; 122 × 3 − 1 = 365.

Explanation

Terms are n³ − 1 for n = 1, 2, 3, …; 6³ − 1 = 215.

Explanation

Multiply by 2, 3, 4, 5, 6 in turn; 120 × 6 = 720.

Explanation

Two alternating series: 3, 6, 12, 24 (×2) and 20, 17, 14, 11 (−3); the 8th term belongs to the second, so 11.

Explanation

The terms are squares of consecutive primes 2, 3, 5, 7, 11, 13; the last should be 13² = 169, not 168.

Explanation

Differences are consecutive primes 2, 3, 5, 7, 11, so next difference is 13: 35 + 13 = 48.

Explanation

Terms are 11² − 1, 10² − 1, 9² − 1, …; next is 6² − 1 = 35 (differences 21, 19, 17, 15, 13).

Explanation

Each letter moves 3 places forward: N + 3 = Q.

Explanation

Positions drop by 2, 3, 4, 5, 6: Z26, X24, U21, Q17, L12, then 12 − 6 = 6 = F.

Explanation

First letters go forward (A, B, C, D, E) and second letters go backward (Z, Y, X, W, V): EV.

Explanation

1st letters +2 (D, F, H, J), 2nd letters −1 (K, J, I, H), 3rd letters +3 (M, P, S, V): JHV.

Explanation

Alternate letters with their alphabet positions: A1, C3, E5, G7, I9.

Explanation

Numbers are squares 1, 4, 9, 16, 25; letters skip one: B, D, F, H, J. So 25J.

Explanation

343 = 7³, so the answer is 9³ = 729.

Explanation

145 = 12² + 1, so the answer is 15² + 1 = 226.

Explanation

Each letter moves 5 places forward (A→F, C→H, E→J), so KMO → PRT.

Explanation

A thermometer measures temperature; a seismograph records earthquake (seismic) waves.

Explanation

Ghoomar is a folk dance of Rajasthan; Garba is a folk dance of Gujarat.

Explanation

27, 125 and 343 are cubes of odd numbers (3³, 5³, 7³); 144 is not a cube.

Explanation

BDF, HJL and MOQ have gaps of +2, +2; RTW has +2, +3.