MATHEMATICS AI TATHT

Class-7th

Chapter-8

Comparing uantities Exercise-8.3

-By3-A.K.Jha

Mathe etics Ch 8 ClassNI Compain entities

E 3

.1 Sol: la) C.b_ o pardeming ghears 50.

S.P 325. 2

e P s hnsre tan CpD.

Therefere, probik - sp-CP (32s- 250)

5. V

NDLO, Probil ( PeLoo CP

) Ar

cp o4 skirt = 5d, 150.

) Jo

Here C P iS mere han

TbertHore; >» CP L.p

T 250 -F15D

LOD.

No Loss. o)

40

.2. a) hive ratio 3:1.

To-t-anb 3+1 4 a fchimoecomes 4 ans Y

cemtase o s part: Loo Nt,

aap7. 75

ereemt-

( 4o 6)

5 As

nenratho 2:3:5

Tot otAnd, -actions mes /%

lou, Porceq_o a:K1o0

ts24345 L

2e o

Per cen se Td xLoo 3o0 30

4o0 .

50 50/

3. Jo: Tnital populadbm 245,OOO

eCrease o he sobuladyon :25rD - 4,5o

500

PertentAe decrease

Ckanze in pouladeMx Aod }. Initpoplaton

2

2/.

4 h Byting price oo lar: 3,50,000 Icreasad price d Ca : F(3,70 0o0 - 3,53, ooo)

20,cOO

Tn Creaseod pite Aoo)

te inrase C.p obr (er

20,b0 -x Lee-/

36

5 An

.. Del C-p ob TV = 10, 0oD.

povb 2o dr ccp

p oTY CP + Pro6i

tspoo t 1000) 2,0oD.

>t, Sf 12,c00 en Selling "TV. *