CA Foundation P3 · Chapter 9 · Question 2 of 9
Find the next term: 2, 6, 12, 20, 30, ?
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: D) 42
Explanation
The terms are n(n + 1): 1x2, 2x3, 3x4, 4x5, 5x6. The next is 6 x 7 = 42. Alternatively the differences 4, 6, 8, 10 increase by 2, so the next difference is 12 and 30 + 12 = 42.
More Number Series, Coding and Decoding and Odd Man Out MCQs
- Q4Find the wrong number in the series: 1, 8, 27, 64, 124, 216
- Q5In a certain code, MONEY is written as NPOFZ. How is LEDGER written in that code?
- Q6In a certain code, CASH is written as XZHS. How is BANK written in that code?
- Q7If TEN is coded as 39 by adding the alphabetical positions of its letters, then SIX will be coded as:
- Q8Find the odd one out: 27, 64, 144, 216