Aik chain ki 20 kariyan hain..upper wali 10 karion mein say har kari 20 20 kg weight utha saqti hai....nechay wali 9 karion mein say har aik kari 10 kg weight utha saqti hai....or last kari 5kg weight utha saqti hai...
So tell me full chain kitna weight utha saqti hai???