Question

If the product of two decimals is 131.58 if one of them is 21.5 . Find the
other

Answer 1

Here,

$\ \textsf{Product of two decimals }{ \bf = 131.58}$

$\textsf{One of the two decimals}{ \bf = 21.5}$

• To find :- The other decimal which results as 131.5 when multiplied with 21.5

$\underline{ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: }$

$\huge\mathbb{SOLUTION : }$

We know,

$\rm \implies 131.5 = 21.5 \times {2}^{nd} \: \: \: decimal \\ \\ \rm \implies \frac{131 \cancel. \: 5}{21 \cancel. \: 5} = {2}^{nd} \: \: \: decimal \\ \\ \rm \implies \frac{1315}{215} = {2}^{nd} \: \: \: decimal \\ \\ \rm \implies 6\frac{25}{215} = {2}^{nd} \: \: \: decimal \\ \\ \rm \implies6 \frac{5}{43} = {2}^{nd} \: \: \: decimal \\ \\ \rm \implies 6 + (0 .116) = {2}^{nd} \: \: \: decimal \\ \rm \implies {2}^{nd} \: \: decimal = \: \underline{ \: \red{6.12} \: }$

Hence,

• On multiplying 6.12 with 21.5, 131.5 is obtained as result.

Answer 2

Answer:

61.2

Step-by-step explanation:

GIVEN- If the product of two decimals is 131.58 if one of them is 21.5

To FIND- the other

SOLUTION-

product - 131.58

21.5× X = 131.58

x = 13158. × 100

100. 215

x= 61.2

the other number is 61.2

FINAL ANSWER- 61.2

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