Question

6. The cost of 15 gross pencils is 3 10,800. What is the cost of 18 pencils?
(One gross = 12 dozen)
(1) 54
(4) * 108
(2) 72
(3) 90​

Answer 1

one gross = 12 dozen

15 gross = 15×12=180 dozen

$now \: we \: have \: to \: find \: numbers \: of \: total \: pencils$

1 dozen= 12 pencils

180 dozen = 12×180=2160 pencils

rupees for 3,10,800 = 2160 pencils

1 pencil =

$\frac{310800}{2160} =$