Archana bought some kilograms of wheat. She requires 12 kg per month and she got enough wheat milled for 3 months. After that, she had 14 kg left. How much wheat had Archana bought altogether?
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Solution
Let the total wheat bought by Archana be xkg.
Wheat used in 1 month =12kg ∴ Wheat used in 3 months =3×12=36kg ∴x−36=14 ∴x−36+36=14+36… (Adding 36 to both sides) ∴x+0=50 ∴x=50 ∴ The total amount of wheat bought by Archana was 50kg.