Question

If one dozen pencil cast Rs 21. Find the cost of one score pencils.w many units are there in a 20 scores?

Answer 1

Cost of 12 pencils = ₹21
Cost of 1 pencil = ₹21 / 12 = ₹1.75

One score of pencil = 12 pencils

Cost of 1 score of pencils = 20 × ₹1.75 = ₹35

1 score contain 20 units
20 scores contains 20 × 20 = 400 units