Nondigital voltmeter A has an equivalent resistance of 2.40 105 and a full-scale voltage of

Question:

Nondigital voltmeter A has an equivalent resistance of 2.40 × 105 Ω and a full-scale voltage of 50.0 V. Nondigital voltmeter B, using the same galvanometer as voltmeter A, has an equivalent resistance of 1.44 × 105 Ω. What is its full-scale voltage?