- X 100 200 300 400- Y 30 20 15- -Which number fills the blank cell-

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Standard VII

Mathematics

Inverse Proportion

[ X 100 200 ...

Question

$\begin{matrix} X & 100 & 200 & 300 & 400 Y & 30 & 20 & 15 \end{matrix}$

Which number fills the blank cell?

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Solution

The correct option is A
60

From the given table, we see that
200 x 30 = 300 x 20 = 400 x 15 = 6000 = constant

Hence, corresponding values of X and Y are inversely proportional.
If we consider the blank as y
$100 \times y = 200 \times 30 \Rightarrow 100 y = 6000 \Rightarrow y = 60$

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X100200300400Y302015 Which number fills the blank cell?

The correct option is A 60 From the given table, we see that 200 x 30 = 300 x 20 = 400 x 15 = 6000 = constant Hence, corresponding values of X and Y are inversely proportional. If we consider the blank as y 100×y=200×30⇒100y=6000⇒y=60

$\begin{matrix} X & 100 & 200 & 300 & 400 Y & 30 & 20 & 15 \end{matrix}$

Which number fills the blank cell?

The correct option is A
60

From the given table, we see that
200 x 30 = 300 x 20 = 400 x 15 = 6000 = constant

Hence, corresponding values of X and Y are inversely proportional.
If we consider the blank as y
$100 \times y = 200 \times 30 \Rightarrow 100 y = 6000 \Rightarrow y = 60$