Answer:
Step-by-step explanation:
Given:
Typing rate of Raquel, Tx = 63 words per minute
Typing rate of Rick, Ty = 73 words per minute
Time taken, s = 135 minutes
Typing rate, T = number of words, R/time taken, s
In 135 minutes, Raquel will type,
Rx = Tx × s
= 63 × 135
= 8505 words.
In 135 minutes, Rick will type,
Ry = Ty × s
= 73 × 135
= 9855 words
Delta R = Ry - Rx
= 9855 - 8505
= 1350 words
Option A
Jared calculation was,
= Typing rate of Raquel, Tx × Typing rate of Rick, Ty
= 73 × 63
= 4599 words