(152 - 42)/(162 - 42) = কত?
সমাধান
সঠিক উত্তর: Option B
(152 - 42)/(162 - 42)
= (15 + 4)(15 - 4)/(16 + 4)(16 - 4)
= (19 × 11)/(20 × 12)
= 209/240
= (15 + 4)(15 - 4)/(16 + 4)(16 - 4)
= (19 × 11)/(20 × 12)
= 209/240