Multiple choice

Tom had 4 chocolates. He decided to buy 3 more chocolates each day than that of the previous day. How many chocolates will he buy on the 11th day?

  1. 16

  2. 29

  3. 30

  4. 34
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

4, 7, 10……….. 11th term = 3(11) + (4 – 3) = 33 + 1 = 34 Tom bought 34 chocolates on the 11th day.

AI explanation

Tom starts with 4 chocolates and buys 3 more each day than the previous day, forming an arithmetic sequence with first term 4 and common difference 3. The amount bought on day n is 4 + 3(n–1), so on day 11 it's 4 + 3(10) = 34. This is a direct application of the nth-term formula for an AP.

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