Question 6 - Past Year MCQ (Maths Standard) - Chapter 1 Class 10 Real Numbers
Last updated at April 16, 2024 by Teachoo
Past Year MCQ (Maths Standard)
Past Year MCQ (Maths Standard)
Last updated at April 16, 2024 by Teachoo
Question 6 If n is a natural number, then 2(5n + 6n) always ends with (a) 1 (b) 4 (c) 3 (d) 2Now, 5n always ends with 5 6n always ends with 6 Thus, (5n + 6n) always ends with 5 + 6 = 11 Thus, 2 × (5n + 6n) always ends with 2 × 11 = 22 i.e. it always ends with 2 So, the correct answer is (d)