What is used to measure weight of different items while buying from a shopkeeper?

A scale or balance is a device to measure weight or mass. These are also known as mass scales, weight scales, mass balances, and weight balances. The traditional scale consists of two plates or bowls suspended at equal distances from a fulcrum.

What is the minimum number of weights you would need to weigh any weight from 1kg to 120 kg?

As given condition does not allow to put weights on both sides of balance so sequence of weights will follow 2^n rule until some of all weights reaches 100. So weights will be 1,2,4,8,16,32,37. by just 5 standard weights. 1kg, 3kg, 9kg, 27kg and 81kg.

What is the smallest set of weights that will allow you to measure any weight from 1 to 121?

You need 5 weights: 1g, 3g, 9g, 27g, 81g. Example: to weigh 50g, have 81g on one side, and 27g, 3g and 1g (and your object) on the other.

Which weights will the shopkeeper use?

Step-by-step explanation: As the shop keeper have to weight 3.5 kg. so the shopkeeper will use 3 1kg and 1 500gm weight in order to weight 3.5 kilograms.

How does the Weights and Measures Act protect consumers?

The law relating to weights and measures today evolved so that: security of uniform system of units of weights and measures could be established; controls could be placed over weighing and measuring equipment in use for trade; the public could be protected against short quantity in the sale of goods.

What is the smallest number of weights for below two cases needed for weighing any object with an integral weight from 1 to 40 kg?

It turns out that you need four weights, measuring 1, 3, 9, and 27 pounds. The trick here is that you can put weights on both sides of the scale.

What if there is a weighing machine which has two sides?

A double-pan balance is a scale which has 2 pans that are balanced against each other.

Which unit is used by a shopkeeper to weight vegetable?

Weights and measures requirements In general, fresh fruit and vegetables must be sold by the kilogram, subject to some exemptions, which are detailed below.