How many cucumbers weigh

The problem is simple, not harder than the problem of the rope at the equator of the Earth, but it belongs to the same surprising type =)

So, there was a bag of cucumbers that weighed 100 kg. Cucumbers were 99% water. The bag was exposed to the sun, and the cucumbers there dried up a little, dried up and began to consist of water by 98%. How many began to weigh a bag of cucumbers? (The weight of the bag is neglected.)