Given:
The overall average speed = 25 cm/s.
The overall average speed increased by 10%.
To find:
The new overall average speed.
Solution:
We have,
Overall average speed = 25 cm/s.
The overall average speed increased by 10%. So, the new average speed is
New overall average speed = Initial average speed + 10% of initial overall average speed
![\text{New overall average speed}=25+(10)/(100)* 25](https://img.qammunity.org/2021/formulas/chemistry/high-school/ctnptu8qemmwfit2crhps8zclawslpabce.png)
![\text{New overall average speed}=25+2.5](https://img.qammunity.org/2021/formulas/chemistry/high-school/sdr2x7p69au8fu6skj4gd2cm1ng9oi4ek9.png)
![\text{New overall average speed}=27.5](https://img.qammunity.org/2021/formulas/chemistry/high-school/7m4cwa1fmb38mfmn90nxd6n73qds2fr1m4.png)
Therefore, the new overall average speed is 27.5 cm/s.