赤い糸 - Red String of Fate

Chapter 64 - 学

( 15 minutes later )

Jeongyeon took some questions from few exam papers, not too hard, afraid it will pressure the dumb, oF Course not too easy since Jeongyeon doesn't wish it to be kissing session instead of study session,

"YEET!" Sana slammed the bathroom door open, immediately on her way to the latter.

"what the- " Jeongyeon startled, hand on the chest, briefly glared at her.

Sana comes and sits down with her lit up face, "let's start!"

"calm down, no one is rushing you," Jeongyeon gives her a blank paper and question paper, "here, to make it fair, i will do it too,"

Sana take a pen, "to make it fair, i will get one too for every wrong answer from you" 

hmmm Jeongyeon was silent for a moment, thinking she is a math genius, she proudly smiled, "no problem" 

"still it's not fair though, you will get it all correct" Sana reads the question paper.

Jeongyeon jokingly snapped, "not fair? let's cancel this—

"LET'S START" Sana is already doing question one.

"Tss," Jeongyeon took a pen and started solving the equation.

-

"I'm done, the answer is = 1 sinθcosθ" Sana smugly said.

she could do the 'sincontan' question?? Jeongyeon hesitated for a moment, "co...correct" 

hearing that 'correct' Sana widely grins and pulls her into a short flavored kiss.

Jeongyeon wonders "what smell is this?? tea?"

"yes, green tea" :>

"so this is the flavor of green tea" Jeongyeon muttered, "tell me more about green tea"

Sana try to think, she really looks like she is in depth of thinking,  "well,, green tea is green tea..." 

"..." Jeongyeon blinked in confusion.

Sana's eyes back to the paper, "let's c-continue! question two! yikes! matrix" 

Jeongyeon slightly smiled to herself, Sana's quote green tea is green tea, ㅋㅋㅋ

After few scribbling Sana smirks, "from first row the answer is [ 24 -12 - 2, 5 3 -5, -4 2 4]

"hahah! wronggg!" Jeongyeon confidently  grins.

"I did it right!" Sana shows her paper, "you see!

Jeongyeon look at it and chuckles, "you haven't divide it by det|A|"

Sana disappointed, "screw that determinant, shh* i ForgoT! Can you take that i answer it correctly? at least i got the adjugate right"

"No~" Jeongyeon teased, "next question"

Sana slightly pouts yet beamed when she reads the next question.

*scribbles the demand & supply equation

"To get the maximum profit company XYZ needs to sell 320a, 135b and 200c, this time i'm very sure it's the correct answer" Sana takes a glance at Jeongyeon's lips before her eyes, "am i correct??"

looks like she studied math, Jeongyeon silently sighs, "correct, well done" 

Sana quickly leans and closes the gap, it only lasted for seconds before Jeongyeon pulled away, "you really like kisses, don't you?