Page 8 - Bangladesh_classwiz_BOOK2018_rev_Neat

†`Lv‡bv n‡q‡Q| AcÖK…Z fMœvsk‡K `yBwU wfbœ Dcv‡q Av`k©iƒ‡c †`Lv‡bv hvq| 1.5 †K `yBwU c×wZ‡ZB wb‡Pi w¯Œ‡b
†`Lv‡bv n‡jv-

cÖ‡Z¨KwU c×wZB 1.5 †K fMœvsk AvKv‡i †`Lv‡bvi Rb¨ mwVK| cÖ_gwU AcÖK…Z fMœvsk, hvi je n‡ii †P‡q eo|

wØZxqwU n‡”Q wgkÖ fMœvsk| qn Pvcvi gva¨‡g ( ⟷ ) wb‡`©kbv e¨envi K‡i GK c×wZ †_‡K Ab¨

c×wZ‡Z iƒcvšÍi m¤¢e|

K¨vjKz‡jU‡i ¯^qswµqfv‡e fMœvsk Dc¯’vcb Kivi Rb¨ qw †P‡c R Kx e¨envi K‡i wØZxq w¯Œ‡b ‡h‡Z
n‡e| Gici Fraction Result Gi Rb¨ 1 Pvc‡Z n‡e| wewfbœ iKg fMœvs‡ki Rb¨ 1 †P‡c 1: / Ges
2 †P‡c 2 ∶ / wbe©vPb Ki‡Z n‡e, hv wb‡P †`Lv‡bv n‡jv-

K¨vjKz‡jUi me mgq `kwgK msL¨v‡K fMœvs‡k cÖKvk K‡i bv| hw` msL¨vwUi me‡P‡q mij fMœv‡ki ni Pvi As‡Ki
‡ewk nq Zvn‡j GwU ¯^qswµqfv‡e `kwgK msL¨v cÖ`k©b Ki‡e| D`vniY wn‡‡m‡e aiv hvK, GKwU `kwgK msL¨v
. 123457, hv‡K fMœvsk AvKv‡i cÖKvk Ki‡j ni A‡bK eo n‡e|

123457
0.123457 =
1000000

K¨vjKz‡jU‡i GB `kwgK msL¨v‡K cÖ‡ek Kiv‡bvi ci n evUb Pvc‡jI GwU fMœvs‡k cwiYZ n‡e bv|

1.3 kZvsk

41
kZvsk GKwU we‡kl ai‡bi fMœvsk hvi ni 100. myZivs †K mswÿß AvKv‡i ‡jLvi c×wZ n‡”Q 41%, hv
100
. 41 Gi mg‡Zvzj¨| qM Pvcvi gva¨‡g kZvsk (%) wPý cÖ‡ek Kiv‡bv hvq| wb‡Pi w¯Œ‡bi w`‡K fv‡jv K‡i
jÿ¨ Ki‡j †`Lv hv‡e †h, 41% Gi Av`k© Dc¯’vcb c×wZ n‡jv fMœvsk AvKv‡i Dc¯’vcb| wKš‘ n evUb Pvcvi
gva¨‡g msL¨vwU‡K `kwgK AvKv‡iI †`Lv hvq|

‡Kv‡bv ‡Kv‡bv msL¨vi kZvsk Zvi mg‡Zvzj¨ fMœvsk AvKv‡i Dc¯’vwcZ n‡j msL¨vwUi ni 100 Qvov Ab¨ msL¨v n‡q
_v‡K, hv wb‡Pi w¯Œ‡b †`Lv‡bv n‡jv| K¨vjKz‡jUi mivmwi ‡Kv‡bv msL¨v‡K kZvsk AvKv‡i cÖKvk K‡i bv|

3