thu otu out n toum an AP i
I Aum
in-n, what he ost toum ( that s S)7 what
is the sum o u t too tarums? What is the
scand twum) Similanly. ind tha 3d, hu toard n
`alutie n-
S, O)-(0) - 3
-2 8-4= 4
a S,-S. 4-3 =t
, S-S ( ) 3 ]
=[11- La-
3-4 -
oSyo-Sg =
Cl1) -t0-[4 - (3J
LH0-160 L36-8U
-3
-60(45)
-6044 5 1 5 .
an Sn Sn- s
Hn-n-Latn-D -(n-
n-n(in-4--2n +)
An n[4n-H-h+2n-
Hn-n-[-n+6n -
n - + - 6 n +5
5-2n
C12 End the sum atha u t o pasitia intege
diviaible ly
aluti ,1, 18, 210 : 40 =240
n=Ho a d -b 240
Sn (a +)
SO
S4O20 246
920
,13 Eind the sum ha tirst 15 multpls a8
1tn 8,14, 24, . .
120 C8X1s 120)
a d 8 8 h 15, l=120
Sn (a+)
SiS153+120)
X15
Ss 15x 360 320
Ars Sun is 960
Eind a um o the odd numbos batweon 0 and 50
Salu Series uaill be 1, 3,5,4,
a- d 2 -43 n - 25!n-25
Sas Ca+D
dns>um ill b G25,
I Aum
in-n, what he ost toum ( that s S)7 what
is the sum o u t too tarums? What is the
scand twum) Similanly. ind tha 3d, hu toard n
`alutie n-
S, O)-(0) - 3
-2 8-4= 4
a S,-S. 4-3 =t
, S-S ( ) 3 ]
=[11- La-
3-4 -
oSyo-Sg =
Cl1) -t0-[4 - (3J
LH0-160 L36-8U
-3
-60(45)
-6044 5 1 5 .
an Sn Sn- s
Hn-n-Latn-D -(n-
n-n(in-4--2n +)
An n[4n-H-h+2n-
Hn-n-[-n+6n -
n - + - 6 n +5
5-2n
C12 End the sum atha u t o pasitia intege
diviaible ly
aluti ,1, 18, 210 : 40 =240
n=Ho a d -b 240
Sn (a +)
SO
S4O20 246
920
,13 Eind the sum ha tirst 15 multpls a8
1tn 8,14, 24, . .
120 C8X1s 120)
a d 8 8 h 15, l=120
Sn (a+)
SiS153+120)
X15
Ss 15x 360 320
Ars Sun is 960
Eind a um o the odd numbos batweon 0 and 50
Salu Series uaill be 1, 3,5,4,
a- d 2 -43 n - 25!n-25
Sas Ca+D
dns>um ill b G25,
