Page 144 - Grade 10 C.Math

cEof; 12.2
1. (a) olb Pp6f ;ª\Vofsf] ju{af6 4 36fpFbf 21 afFsL /xG5 eg] pSt ;ª\Vof slt xf]nf <
kTtf nufpg'xf];\ .

(b) olb Pp6f ;ª\Vofsf] ju{df 18 hf]8\bf 214 x'G5 eg] ;f] ;ª\Vof slt xf]nf < kTtf
nufpg'xf];\ .
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(c) olb Pp6f ;ªVof / To;sf JoTjmdsf ofukmn 5 eg pSt ;ªVof kTtf nufpgxf; .
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2. (a) sg bO cf6f jmdfut hf/ ;ªVofx¿sf u0fgkmn 1056 xG5 eg tL ;ªVofx¿ kTtf
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nufpgxf; .
(b) b'O{ cf]6f j|mdfut ;ª\Vofx¿sf] ju{sf] of]ukmn 340 x'G5 eg] tL ;ª\Vofx¿ kTtf
nufpg'xf];\ .
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3. (a) bO cªsn agsf Pp6f ;ªVofdf Pssf :yfgdf kg cªs b;sf :yfgsf cªs eGbf 4 n]
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a9L 5 . olb bO cªsx¿sf u0fg kmn 21 5 eg ;f ;ªVof slt xG5 < kTtf nufpgxf; .
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(b) cª\sx¿sf] of]ukmnsf] rf/ u'0ff ePsf] b'O{ cª\ssf] Pp6f ;ª\Vof 5, olb cª\sx¿sf]
u'0fg kmn 18 eP Tof] ;ª\Vof slt x'G5 < kTtf nufpg'xf];\ .
4. (a) b'O{ hgf bfh' / efOsf] xfnsf] pd]/sf] of]ukmn 34 jif{ / pgLx¿sf] pd]/sf] u'0fg kmn 288 5
eg] ltgLx¿sf] xfnsf] pd]/ slt x'G5 < kTtf nufpg'xf];\ .
(b) afa' / 5f]/f]sf] xfnsf] pd]/ j|mdzM 42 jif{ / 16 jif{ 5 . slt jif{cl3 ltgLx¿sf]
pd]/sf] u'0fg kmn 272 lyof] < kTtf nufpg'xf];\ .
(c) b'O{ hgf ;fyLx¿sf] clxn]sf] pd]/ 32 jif{ / 35 jif{ 5 . slt jif{kl5 ltgLx¿sf] pd]/
sf] u'0fg kmn 1404 x'G5 < kTtf nufpg'xf];\ .
5. (a) Pp6f ;dsf]0fL lqe'hsf] s0f{ 13 ld6/ 5 . olb afFsL b'O{ e'hfx¿s]f gfksf] km/s 7
ld6/ eP afFsL e'hfx¿sf] nDafO kTtf nufpg'xf];\ .
(b) Pp6f cfotfsf/ hUufsf] If]qkmn 88 ju{ ld6/ / kl/ldlt 38 ld6/ 5 . pSt hUufsf]
nDafO / rf}8fO slt x'G5 < kTtf nufpg'xf];\ .
6. cfk"m ;'Tg] sf]7fsf] kl/ldlt / If]qkmn cg'dfg ug'{xf];\ . If]qkmn / kl/ldlt lbPsf] cfwf/df
sf]7fsf] nDafO / rf}8fO kTtf nufpg'xf];\ . cfk"mn] cg'dfg u/]sf]eGbf jf:tljs
nDafO / rf}8fO s] sltn] km/s eof], t'ngf ug'{xf];\ .= =
141 ul0ft, sIff – 10