'Brain damage' with the 50 million VND bonus math problem

After being rewarded 50 million VND by his mother, the young man immediately bought the things he liked, but strangely, the total amount spent ended up being 51 million VND.

Specifically, the guy used 50 million VND to buy a new car for 20 million VND, a phone for 15 million VND, clothes for 9 million VND and a phone for his girlfriend for 6 million VND. When he finished buying, the total amount was 51 million VND, making the guy wonder where he miscalculated.

Please explain to the guy why the total amount is 51 million VND.

The 50 million bonus problem makes many people wonder.

This problem makes many people wonder because they spent 50 million VND but when calculating the total, there was 1 million left. Please scroll down to the comment section to explain why the total amount after spending is 51 million VND.

Source: https://vtcnews.vn/hai-nao-voi-bai-toan-50-trieu-dong-tien-thuong-ar886711.html