Reading Magnifier

Thomas wants to use 6.2 of a friend reading glasses D as a simple magnifier. What is the angular magnification of the lens when the eye is relaxed Thomas? Suppose that the point near Thomas is 26 cm.

Sorry, but the info given is insufficient.
The angular magnification is the ratio of distances of visualization.
We assume that the largest viewing distance is 26 cm.
But close viewing distance depends on the focal length of the eye <relaxed> Thomas in combination with the glasses. We do not know about his eyes relaxed. We would need to know its point of measurement.
For example, say the point of measurement is 2.5 m. Then his eye with focal length = 1 / (1/2.5 6.2) m = 15.1515 cm. Magnification = = 1.716 26/15.1515.
If the measurement point is at infinity, magnification = 1.612.