Page 46 - Grade 10 C.Math

2(a) 3 jif{cufl8 k|sflzt Pp6f lstfasf] d"No ?= 3000 lyof] . pSt lstfanfO{ x/]s jif{
lglZrt b/df 5'6df lbFb} laj|mL u/L xfn pSt lstfanfO{ ?= 1536 df laj|mL ul/of] eg]
slt k|ltztsf b/n] d"Nodf x|f; cfof] < kTtf nufpg'xf];\ .
(b) Ps hgf ls;fgn] ?= 2,50,000 df lsg]sf] y|];/ d]l;g 2 jif{kl5 ?= 1,60,000 df laj|mL
u/] eg] pSt dl;gsf] ld>x|f; b/ kTtf nufpg'xf];\ .
Curriculum Development Centre
(c) Pp6f 3/sf] xfnsf] d"No ?= 20,48,000 5 . olb jflif{s 15% sf b/n] ld>x|f; x'g] eP
slt jif{kl5 pSt 3/sf] d"No ?= 12,57,728 xf]nf < kTtf nufpg'xf];\ .
(d) Pp6f wfgs'6\g] d]l;g s]xL jif{cufl8 ?= 4,00,000 df lslgPsf] lyof] . clxn] o;sf] d"No
?= 1,96,000 k5{ . pSt d]l;gsf] d"No 30% k|ltjif{ x|f; eO/x]sf] eP pSt d]l;g slt
jif{cufl8 lslgPsf] /x]5 <

3.(a) Pp6f ;fd'bflos hª\undf nueu 20,000 7'nf ?vx¿ lyP . phf{ ;ª\s6sf sf/0f
jflif{s ¿kdf pkef]Stfx¿n] OGwgsf nflu 8% ?vx¿ sf6\g] u/]sf eP 2 jif{;Dd hDdf
slt cf]6f ?v sfl6Pnfg\ < o:tf ;d:ofx¿sf] ;dfwfgsf j}slNks pkfox¿sf af/]df
5nkmn ug'{xf];\ .
(b) Pp6f d]l;gsf] xfnsf] d"No ?= 5,00,000 5 . pSt d]l;gsf] d"No klxnf] jif{ 15% /
To;kl5sf jif{x¿df j|mdzM 10% / 5% n] x|f; x'Fb} hfG5 eg 3 jif{kl5 pSt d]l;gsf] d"No
]
slt xf]nf <

(c) Pp6f ljb\o'tLo ;fdu|L pTkfbg pb\of]un] cfˆgf] ahf/ v:sb} uPsf sf/0f k|ltjif{ 10%
sfdbf/ s6f}tL ub}{ n}hfg] 3f]if0ff u¥of] . To;}adf]lhd clxn] pSt pb\of]udf hDdf 40,000
sfdbf/ sfo{/t 5g\ eg] 3 jif{cl3 pSt pb\of]udf slt sfdbf/ sfo{/t lyP < kTtf
nufpg'xf];\ .
4. cf}ifwL k|of]usf sf/0fn] k|ltlbg 20% n] 3l6/x]sf] AofS6]l/ofsf] ;ª\Vof rf/ lbgkl5 hDdf

1.6 × 10 eP5 eg] 4 lbg cufl8 pSt AofS6]l/off] ;ª\Vof slt lyof] xf]nf <
8
5. rf/ rf/ hgfsf] ;d"x lgdf{0f u/L k|To]s ;d"x km/s km/s sDkgL, Uof/]h jf k;n jf
cGo ;+:yfx¿df hfg'xf];\ . pSt ;+:yf jf lgsfodf k|of]u u/]sf cyjf ePsf ljb\o'tLo
;fdu|L, d]l;; jf ;jf/L ;fwgsf] vl/bsf] ;dosf] d"No ;f]Wg'xf];\ . pSt ;fdu|LnfO{
clxn]sf] cj:yfdf a]Rg'kbf{ kg]{ d"No klg ;f]Wg'xf];\ . pSt ;fdu|L vl/bkZrft s] slt
cfDbfgL eof] Tof] klg l6kf]6 ug'{xf];\ . dflysf tYofª\sx¿ k|of]u u/L pSt ;fdu|Lsf]
d"No slt k|ltztn]] jflif{s ¿kdf 36]sf] /x]5 kTtf nufpg'xf];\ . ;fy} pSt d]l;g÷uf8L
laj|mL ubf{ pgnfO{ slt k|ltzt gfkmf jf gf]S;fg x'G5 < k|ltj]bg tof/ u/L sIffdf k|:t't
ug'{xf];\ .

43 ul0ft, sIff – 10