Question

If one dozen pencils cost rs 21 find the cost of one score pencils this q/ans class -8

Answer 1

Rs 350 is the answer

Answer 2

∵ the cost of 12  pencils = 21

∴ ''  '''    ''   ''       1 pencil = 21/12

∴      ''            ''    20  ''   = 21/12  x 20 = 35

As 1 score = 20 objects.