Question

the price of 15 dozen pencil is rupees 360 find the price of 21 dozen pencils

Answer 1

Answer:

Rs. 504

Step-by-step explanation:

cost of 15 dozen pencil = Rs. 360

cost of 1 dozen pencil = 360/15 = Rs. 24

cost of 21 dozen pencil = 24x21 = Rs. 504

Answer 2

Given,
The price 15 dozen pencil is = 360
then the price 21 dozen pencil is = ?
15×12 =180 pencils
21×12=252 pencils
180pencils = 360
1 pencil = x
x=360/180
x=2
then the price 21 dozen pencil is = 252×2 = 504
The price 21 dozen pencil is 504
Hope it helps