a. Find \( 80,6 \% \) of 110.

Mrs. Thapa is a teacher. She can walk \( 2 \frac{1}{4} \mathrm{~km} \) in one hour. How long does he take to go to her school which is \( 4 \frac{1}{2} \mathrm{~km} \) for from her home?

Ratios \( 3: 6= \)

The speed of a motorbike decreases from 60.5 km per hour to 40.8 km per hour in 5 minutes. Find the decrease in speed in a minute. \( \begin{array}{ll}\text { A. } 3.24 \mathrm{~km} \text { sejam } & \text { C. } 3.94 \mathrm{~km} \text { sejam } \\ 3.24 \mathrm{~km} \text { per hour } & 3.94 \mathrm{~km} \text { per hour } \\ \text { B. } 3.64 \mathrm{~km} \text { sejam } & \text { D. } 3.98 \mathrm{~km} \text { sejam } \\ 3.64 \mathrm{~km} \text { per hour } & 3.98 \mathrm{~km} \text { per hour }\end{array} \)

14. 12,16 तथा 28 का म.स. है \( \begin{array}{ll}\text { (a) } 8 & \text { (b) } 6 \\ \text { (c) } 4 & \text { (d) } 2\end{array} \)

Quel est le résultat de la réduction du nombre 3,999 au millier le plus proche ?