Question

AP with first term
ir be woevers the
Bu
e merk mot. Find the
D ie Inner of days
AITORT
Kis completed in t days w
every day except the first day.
Ways is the sum ofn terms of an AP w
8) days with a
who would h.
wld have
S
LUTRON Suppose the
workers are dropped on every day
workers who worked all the ridays 15
Common difference-4
2/2 x 150 + (1 - 1) * 4) = n (152 - 2n)
have finished it in (n-8) a
Had the workers not arop
workers working on each day
ve workers not dropped then the work would has
worked all then days is 150 (7-8).
"5 on each day. Therefore the total number of workers wh
n (152 - 2n) = 150 (n - 8)
152n - 2n2 = 150n - 1200
2n2 - 2n - 1200 = 0
En >01
f 10 metres. Tu
s. These
one stone at a ti
n? - n - 600 = 0
(n - 25) (n + 24) = 0
n = 25
Mence, the work is completed in 2
//EXAMPLE 39 Along a road lieu
stones have to be assembled around the
man carried the job with one of the ena su
he covered a distance of 3 km. Find th
Fatime. A
11 the stones
48 a road lie an odd number of stones placed at intervals of 10
Oled around the middle stone. A person can carry only one sto
ef the end stones by carrying them in succession. In carr
LET 3 km. Find the number of stones.​

Answer 1

Step-by-step explanation:

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