Question

A shopkeeper has weighs of 1 kg , 3kg , 9 kg and 27 kg. How will he weigh any weight from 1 kg to 40 kg using these weights only once ?
pls answetr the question

Answer 1

Step-by-step explanation:

Up t0 40 kg:  

Weights are: 1 kg, 3 kg, 9 kg, 27 kg  

Like this:  

Y0u can put the weights 0n the 0ther side of the balance, theref0re subtracting some of the weight fr0m the 0ther side. Using this system the 0bjects can be weighed-  

1kg = 1kg

2kg = 3kg - 1kg

3kg = 3kg

39kg = 27kg + 9kg + 3kg

40kg = 27kg + 9kg + 3kg + 1kg

Answer 2

Answer:

hope it will help you

Step-by-step explanation:

Similarly, 5 kg : It can be done using 5 kg + 1 kg + 3 kg = 9 kg. ... Like this we can do for all the weights till 40 kg (40 = 1 + 3 + 9 + 27). Hence, the 4 weights required are 1 kg, 3 kg, 9 kg and 27 kg.