CUET Preparation Today
In a row of boys facing North, P is sixteenth from the left and Q is sixteenth from the right end. R, who is fourth to the right of P and fifth to the left of Q. Then how many boys are there in the row? |
40 38 42 39 |
40 |
Total = L + R – 1 ⇒ 20 + 21 – 1 = 40 |
