Question

A farmer has 65 kg fertiliser. He applied some fertiliser and is left with 25 kg of fertiliser. The amount of fertiliser left with the farmer is

• A. 20 kg
• B. 40 kg
• C. 50 kg
• D. 70 kg

Answer 1

The correct option is B 40 kg

The tape diagram for the problem will be:

Now the farmer has initally 65 kg of fertiliser.
The number line for this amount will be:

Now he is left with 25 kg of fertiliser.
The number line representation will be:

Now the amount of fertilizer used will be:

∴ The farmer has used 40 kg of fertilizer in the soil.