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Averages
It rained as much as on Wednesday as on all the other days of the week combined. If the average rainfall for the whole week was 3 cms; how much did it rain on Wednesday?
A. 3 cms
B. 10.5 cms
C. 15 cms
D. 2.62 cms
E. 4.5 cms
Read Solution (Total 2)
-
- Ans: Option B 10.5
all 6 days equals to wed.
.: wednesday = x
all 6 days = x
(x+x)/7 = 3
2x = 21
x =10.5 - 11 years agoHelpfull: Yes(4) No(1)
- Total rainfall = 3 x 7 = 21 cm
Hence, rainfall received on wed = 21/2 (as it rained as much on wed as on all the others days of the week combined)
= 10.5 cm. - 3 years agoHelpfull: Yes(0) No(0)
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