Question

You are given 30kg of rice. You are provided with a 2kg stone for and a manual scale for weighing. In how many time of weighing can you weight the 30kg of rice

Answer 1

Answer:

Step-by-step explanation:

15 times is needed in a easy way

the least number of times you need to weight is

1. 2kg
2. 4kg(stone and the previous weighted)
3. 8kg(same before)
4. 16kg

you need to weigh 5 times

Answer 2

Answer:

In 6 times of weighing can you weight the 30 kg of rice.        

Step-by-step explanation:

Given : You are given 30 kg of rice. You are provided with a 2 kg stone for and a manual scale for weighing.

To find : In how many time of weighing can you weight the 30 kg of rice.

Solution :

Total kg of rice = 30 kg.

Stone weigh = 2 kg.

So, 2 kg of stone = 2 kg of rice

2 kg of stone+2 kg of rice = 4 kg of rice

2 kg of stone+2 kg of rice+4 kg of rice= 8 kg of rice

2 kg of stone+2 kg of rice+4 kg of rice+8 kg of rice = 16 kg of rice

2 kg of stone+2 kg of rice+4 kg of rice+8 kg of rice+16 kg of rice=32 kg of rice.

32 kg of rice - 2 kg of rice = 30 kg of rice.

Therefore, In 6 times of weighing can you weight the 30 kg of rice.