1/p + 1/q = 1/f

1/+10 + 1/q = 1/+15

q = -30 cm (minus sign means virtual)

m = y'/y = -q/p = -(-30)/(+10) = +3 (plus sign means erect)

y' = 3y = 3X5 = 15 cm high

Answer is E

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