Lmao's answer to Durga Dharshini's Secondary 4 E Maths question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Lmao
Lmao's answer
14 answers (A Helpful Person)
*The question didn't specify that t is the time between PX but that t is unknown . So u can use the eqn for c and d . (Usually this type of question will ask u to find eqn first then later parts solve it .)