I'm not believing that. The shortest distance between Earth and Mars is 35.8M mi (57.6M km). The average speed would need to be ~50k mph (80 kph). Top speed would need to be much higher to account for acceleration and deceleration. That would also mean we'd need enough fuel for constant acceleration the whole trip.

Even then, that's considering a perfect straight line if both planets are going the same speed and have no gravity. But, orbital flight doesn't work like that. First, we'd have to leave the Earth's gravity well. Then, float along between the two while orbiting the Sun in an arc, which would make the distance longer since it's not a straight line (see image below). Once at Mars, we'd need to decelerate (accelerate in the opposite direction) much more than on Earth because of Mars lower gravity meaning slower orbital speed.

Also, Russia can't tell the truth. It's part of their psyops. Always lying teaches people that truth is whatever they say, not objective reality.