The average temperature of Monday, Tuesday, Wednesday and Thursday was 38∘ and that of Tuesday, Wednesday, Thursday and Friday was 40∘. If the temperature on Monday was 30∘, the temperature of Friday was : a) 40∘ b) 39∘ c) 38∘ d) 30∘ e) 42∘

The average temperature of Monday, Tuesday, Wednesday and Thursday was 38∘ and that of Tuesday, Wednesday, Thursday and Friday was 40∘. If the temperature on Monday was 30∘, the temperature of Friday was :
a) 40∘
b) 39∘
c) 38∘
d) 30∘
e) 42∘
by

1 Answer

Answer :

M+T+W+Th=(4×38)=152
Monday temparature is 30. So T+W+Th=(152-30)=122
T+W+Th+F=(4×40)=160
F = (160-122)= 38∘
Answer: c)
by

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