Q. Length of the stem at time 0 is 20 cm. The arithmetic growth rate is 30 cm per day. What is the length of the stem at the end of the 7th day?
A) 460 cm
B) 50 cm
C) 170 cm
D) 230 cm
Explanation
[Solution from source] Arithmetic growth: $L_t=L_0+rt=20+30\times7=230$ cm. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.