উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।
ব্যাখ্যা ও সঠিক সমাধান
উত্তর:
560
let, pallab has = X stamps
ziko has = 0.75X stamps
pallab has x - 0.75x = 0.25x more stamps than than ziko.
apq,
0.25x = 80
x = 320
pallab has = 320 stamps
ziko has = 320x.75 = 240
together they have = 320 + 240 = 560