Average rainfall on Monday, Tuesday, Wednesda | vedclass

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Question

$M+T+W+T h=4 	imes 420.5=1682 cm$ ....$(1)$

$T+W+ Th +F=4 	imes 440.5=1762 cm$ ....$(2)$

By equation $(2)-$equation $(1),$ we have

$F-M=176

Vedclass · Accepted Answer

$1600,1680$

Vedclass · Answer

$M+T+W+T h=4 	imes 420.5=1682 cm$ ....$(1)$

$T+W+ Th +F=4 	imes 440.5=1762 cm$ ....$(2)$

By equation $(2)-$equation $(1),$ we have

$F-M=1762-1682=80$

Let the rainfall for Monday and Friday be $20 x$ and $21 x$ cm respectively. Now, according to the question,

$21 x-20 x=80$

$\Rightarrow x=80$

$	herefore$ Monday $\Rightarrow 80 	imes 20=1600 cm$

$	herefore$ Friday $\Rightarrow 21 	imes 80=1680 cm$

Average rainfall on Monday, Tuesday, Wednesday and Thursday is $420.5\, cm$ and average on Tuesday, Wednesday, Thursday and Friday is $440.5\, cm .$ If the ratio of rainfall for Monday and Friday is $20: 21,$ find the rainfall in $cm$ on Monday and Friday.

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