Physics latent heat help

[Sunny42251]

In an experiment to find latent heat, the following readings were taken.
M1= mass of water at 100c before boiling starts
M2 = mass after boiling
Voltage
Current
Time

Using the symbols above, write down the equation that must be used to find the value of specific latent heat of water

Thanks guys

 

[Sunny42251]

Never mind, I found my answer thanks