If area of parallelogram ABCD is 25 cm2 and on the same base CD, a triangle BCD is given such that area BCD = x cm2, then value of x is
12.5 cm2
25 cm2
20 cm2
15 cm2
ABCD is a parallelogram. P is any point on CD. If ar(△DPA)=25 cm2 and ar(△APC)=40 cm2, then area(△APB)is