Mathematics · Arithmetic & AlgebraThe ratio of 250 g to 1 kg is:A1:2B1:3C1:4D1:5Why? Convert 1 kg to 1000 g, so 250:1000 simplifies to 1:4.Asked in: NTSSASubmitted by Super Admin
Mathematics · Arithmetic & AlgebraIf 5 workers build a wall in 12 days, how many days would 3 workers take?A18B15C20D24Why? It is an inverse proportion: 5 × 12 = 60 worker-days, so 60 ÷ 3 = 20 days.Asked in: NTSSASubmitted by Super Admin