Help from this maths situation.

Hinglish m type krta hu easy rahega: Jaise m ek chapter start krta hu, or topic smjh bhi jata h and next questions bhi solve hone lagte h classes k, lakin jab chapter khatam hojata h, or firse apne notes wale revision krta hu vo thoda mushkil or asan lagte h lagte h lakin hojata h. BUT jab alg sheet lagata hu (jo extra solve krne k liye hote h, for practice) muskil se man lo 10 m se 3 ques khud se bana pata hu, jab ans dekhta hu "oocha aise hoga" (aise nhi ki ek bar nhi hua fir ans), smjh nhi ata...kya h ye...ye konsa ques agya...kaise hoga...bc fir sheet lagane ka man hi nhi krta...fir bhulte jaoo..