C-11-Q076mediumsingle_mcq

In the same problem (father:son $7:2$ becomes $8:3$ after $5$ years), the son's present age is—

a $7$ years
b $8$ years
c $10$ years
d $12$ years

ব্যাখ্যা

Using the same equation with $x=5$ , the son's present age is $2x=2\times 5=10$ years. This is consistent with the post- $5$ -year ratio $40:15=8:3$ .

এই অধ্যায়ের আরও প্রশ্ন

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Algebraic Ratio and Proportion — সব প্রশ্ন দেখুন (180টি) →

In the same problem (father:son 7:27:27:2 becomes 8:38:38:3 after 555 years), the son's present age is—

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

In the same problem (father:son 7:27:27:2 becomes 8:38:38:3 after 555 years), the son's present age is—

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

In the same problem (father:son $7:2$ becomes $8:3$ after $5$ years), the son's present age is—

In the same problem (father:son $7:2$ becomes $8:3$ after $5$ years), the son's present age is—