Three battery operated robot toys A, B and C do hand movement and leg movement. Battery capacities of the toys A, B and C are 1500 mAh, 1600 mAh and 1800 mAh respectively. Present battery percentage of the toys A, B and C are 80%, 70% and 75% respectively. Four hand movements and three leg movements of a toy consume 1 mAh unit of battery. Six hand movements and seven leg movements of a toy consume 2 mAh unit of battery.
Que: If toy A started at 9 AM and the battery of the toy discharged at 12 PM and during this period, total number of hand movements done by toy A is 1200 more than the number of leg movements, then on average how many leg movements done by toy A in 1 minute
A. 15 B. 20 C. 25 D. 30 E. None of these