# Series Test Practice Set

DIRECTIONS (Qs. 1-5): Complete the given series.

दिशानिर्देश (प्रश्न 1-5):दी गई श्रृंखला को पूरा करें।

 1. YANWY, DFMBD, IKNGI, NPMLN, (?), XZMVX A. RUMSR B. SUNQS C. UWNSU D. VUMTV Answer: Option B Explanation: Sequence is : Y → +5 → D → +5 → I → +5 → N → +5 → S → +5 → X A → +5 → F → +5 → K → +5 → P → +5 → U → +5 → Z N → -1 → M → +1 → N → -1 → M → +1 → N → -1 → M W → +5 → B → +5 → G → +5 → L → +5 → Q → +5 → V Y → +5 → D → +5 → I → +5 → N → +5 → S → +5 → X View / Hide Answer

 2. QPO, SRQ, UTS, WVU, (?) A. XVZ B. YXW C. ZYA D. VWX Answer: Option B Explanation:Each letter moves +2 steps View / Hide Answer

 3. YEB, WFD, UHG, SKI, (?) A. QOL B. TOL C. QGL D. QNL Answer: Option A Explanation:1st letter moves –2 steps each time. 2nd letter moves +1, +2, +3, +4 steps respectively. 3rd letter moves +2, +3, steps alternatively. View / Hide Answer

 4. 28, 33, 31, 36, ? 39 A. 32 B. 34 C. 38 D. 40 Answer: Option B Explanation:The pattern is +5, –2, +5, –2, ….. So, missing term = 36 –2 = 34. View / Hide Answer

 5. 165, 195, 255, 285, 345, ? A. 375 B. 390 C. 420 D. 435 Answer: Option D Explanation:Each number of the series is 15 multiplied by a prime number i.e. 15 × 11, 15 × 13, 15 × 17, 15 × 19, 15 × 23, ….. So, missing term = 15 × 29 = 435. View / Hide Answer

DIRECTIONS (Qs. 6-10): Which sequence of letters when placed at the blanks one after another will complete the given letter series ?

दिशानिर्देश (प्रश्न 6-10): रिक्त स्थान पर दिए गए अक्षरों का अनुक्रम एक दूसरे के बाद दिए गए अक्षर श्रृंखला को पूरा करेगा?

 6. b_b_bb_bbb_bb_b A. bbbbba B. bbaabb C. ababab D. aabaab Answer: Option C Explanation:The series is babb/bbab/bbba/bbbb. Thus, in each sequence, ‘a’ moves one step forward and ‘b’ takes its place and finally in the fourth sequence, it is eliminated. View / Hide Answer