Question

Cost of 1 dozen of banana is Rs 42 what is the cost of $3\frac{1}{2}$ dozen of banana?

Answer 1

$1dozen=Rs.42$

$\frac{1}{2}dozen=Rs.21$

$3dozen=Rs.42\times 3=Rs.126$

$Total=126+21$

$Cost=Rs.147$

$\therefore$ cost of $3\frac{1}{2}$ dozen of bananas is Rs.$147$