D is a real number with non terminating digits $a_1 and a_2$ after the decimal point. Let $D=0.a_1{a}_2{a}_1{a}_2\dots \dots ..$ with $a_{1}and a_2$ both of zero which of the following when multiplied by D will necessarily give an integer ?

Which one of the following is a non - terminating repeating decimal?

Which one of the following decimal numbers is a rational number with denominator$37$?

Find such number, so that one fourth of the number is $8$more than $5$:

Write the terminating decimal numeral for $\frac{29}{50}$.

Express $0.1\overline{36}$ in the form $\frac{p}{q}, p, q$ are integers, $q\ne 0$.

Write the terminating decimal numeral for $\frac{17}{32}$.

Write $\frac{2}{11}$ in decimal form and say what kind of decimal expansion it has?

Write the terminating decimal numeral for $\frac{7}{4}$.

Place value of $3$ in $\mathrm{6,380,942}$ _____ Place value of $3$ in $\mathrm{7,389,426}$