CUET Preparation Today
In a row of boys; A is 17th from the left and ‘B’ is 19th from the right. They both interchange their position. Now A becomes 31st from the left. How many boys are there in the row? |
47 50 48 49 |
49 |
Total = L + R – 1 = 31 + 19 – 1 ⇒ 49 |
