There is a tank filled with water if 1/5 is used by Ayush Out Of remaining 1/3 waters used by any and again remaining water half of the water is used by Tanu if Sanjay used 5 liter water then now how many liter are in tank ?
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Answer:
The distance of nearest tree is 10m
so that distance travelled to water nearest tree =20m ....... (10×2=20m)
The distance of next nearest tree is 10+5=15m
so total distance travelled =15×2=30m
following form an A.P of terms : - (20,30,40,50.........)
∴ We have to find total distance travelled,
∴ we have to find S
25
n=25,a=20d=10
∴S
n
=
2
n
(2a+(n−1)d)→ formula
∴S
25
=
2
25
(2×20+(25−1)10)
∴S
25
=
2
25
(40+24×10)
∴S
25
=25(20+120)
∴S
25
=25×140
∴S
25
=3500m
Total distance traveled is 3500m
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