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Pump A has HA= -2.15E-4×GPM2+0.015 ×GPM + 250, and pump B has Hb= -2.95E-4×GPM2+0.020×GPM + 210....

Pump A has HA= -2.15E-4×GPM2+0.015 ×GPM + 250, and pump B has Hb= -2.95E-4×GPM2+0.020×GPM + 210. These two pumps are combined in parallel. What is the head produced by these pumps in parallel when the flow rate is 201 GPM?

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