text: yaar,kal ka exam hai aur mujhe samajh nahi aa raha, wo last chapter ka concept mujhe itna confusing lag raha hai, kuch samajh nahi aa raha hai.don't worry, main tujhe samjhati hoon, thoda patience rakh, hum saath mein practice karte hain, tu dekhna, sab clear ho jayega aur tu achha score karega!