Question

the cost of a dozen pens is rs.53.60.Find the cost of 7 such pens.

Answer 1

Answer:

Ans:₹31.29

Step-by-step explanation:

Sol:

the cost of a dozen pens = ₹53.60

the cost of 7 pens = ?

we know that,

1 dozen pen = 12 pens

since, cost of 12 pens = ₹53.60

so, cost of 1 such pen= ₹ 53.60/12

Hence, cost of 7 such pens = ₹4.47 × 7

= ₹31.29

Ans:₹31.29