Page 7 - Grade 10 C.Math
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(c) olb ;d"x P = {3 sf 30 ;Ddsf ckjTo{x¿}, Q = {4 sf 30 ;Ddsf ckjTo{x¿} /
U = {1 b]lv 30 ;Ddsf k"0ff{ª\sx¿} sf ;d"x ePdf P / Q sf] ;DaGwnfO{ e]glrqdf k|:t't
ug'{xf];\ . ;d"x P df dfq kg]{ ;b:ox¿sf] ;ª\Vof kTtf nufpg'xf];\ .
(d) olb n(X) = 45, n(Y) = 65 / n(X Y) = 85 5 eg] n(X Y) / n (Y) e]glrqsf dfWodaf6
0
kTtf nufpg'xf];\ .
Curriculum Development Centre
3. (a) s[ifsx¿sf] Pp6f ;d"xdf ul/Psf] ;j]{If0fdf 60% n] e}F;L kfng, 55% n] ufO{ kfng /
35% n] e}F;L / ufO{ b'j} kfNbf /x]5g\ . o;nfO{ e]gleqdf k|:t't u/L e}F;L / ufO{ s'g}
klg gkfNg] ls;fgx¿sf] k|ltzt kTtf nufpg'xf];\ .
(b) zflGt pRr df=lj=sf 200 hgf ljb\ofyL{x¿df ul/Psf] Ps ;j]{If0fdf 65% n] b;}F dg k/fP /
45% n] Nxf];f/ dg k/fP t/ 20% n] b;}F / Nxf];f/ b'j} dg k/fP . pko'{St
tYonfO{ e]glrqdf k|:t't u/L b;}F / Nxf];f/ afx]sdf rf8 dg k/fpg] ljb\ofyL{x¿sf]
;ª\Vof kTtf nufpg'xf];\ .
(c) 300 hgf ljb\ofyL{x¿df ul/Psf] Ps ;j]{If0fdf 120 hgfn] 6]an 6]lg; / 205 hgfn] af:s]6
an v]n dg k/fpF5g\ . olb ;a} ljb\ofyL{x¿n] sDtLdf klg Pp6f v]n dg k/fpFbf/x]5g\
eg] e]glrqsf] lgdf{0f u/L -s_ b'j} v]n dg k/fpg] ljb\ofyL{ ;ª\Vof kTtf nufpg'xf];\ .
-v_ Pp6f dfq v]n dg k/fpg] ljb\ofyL{ ;ª\Vof kTtf nufpg'xf];\ .
(d) dtbfg k"j{ ul/Psf] Pp6f gd'gf ;j]{If0fdf 65% hgtfn] g]tf A nfO{ / 60% hgtfn] g]tf
B nfO{ dg k/fPsf] kfOof] . olb 15% hgtfx¿ st} klg v'Ng rfx]gg\ eg] e]glrqsf]
k|of]u u/L b'j} g]tfnfO{ dg k/fpg] hgtfsf] k|ltzt kTtf nufpg'xf];\ .
4. uf}/Lzª\s/ pRr df=lj=df ul/Psf] Pp6f ;j]{If0fdf 300 hgfn] eljiodf ;/sf/L
hflu/ ug]{, 250 hgfn] Joj;fo ;~rfng ug]{ / 110 hgfn] b'j} sfd ug{ ;Sg ]
OR5f hfx]/ u/] . olb ;a} hgfdf sDtLdf Pp6f sfd ug]{ OR5f ePsf] kfOof] eg] e]glrqsf]
k|of]u u/L -s_ ;/sf/L hflu/ dfq ug]{ OR5f x'g] ljb\ofyL{ ;ª\Vof kTtf nufpg'xf];\ .
-v_ Joj;fo dfq ug]{ OR5f x'g] ljb\oyL{ ;ª\Vof kTtf nufpg'xf];\ .
-u_ hDdf slt hgf ljb\ofyL{df pSt ;j]{If0f ul/Psf] /x]5 kTtf nufpg'xf];\ .
5. kfFr kfFr hgf ljb\ofyL{x¿sf] ;d"x lgdf{0f u/L cfk\mgf] ;d'bfosf ljleGg cleefjsx¿nfO{
lgDg k|Zg ;f]Wg'xf];\ M
tkfO{Fx¿ cfk\mgf] ;Gtfgn] s'g k];f cFufn]sf] x]g{ rfxg'x'G5 <
-s_ lzIf0f -v_ lrlsT;f -u_ b'j} -3_ cGo ;]jf
dflysf k|Zgsf] pTt/ k|fKt ul/;s]kl5 pSt tYofª\sx¿nfO{ e]glrqdf k|:t''t u/L glthfnfO{
sIffsf]7fdf 5nkmn ug'{xf];\ .
4 ul0ft, sIff – 10
