A triangle and a parallelogram are on the same base and between the same parallels. The ratio of the areas of triangle and parallelogram is 1:1        (b)  1:2              (c)  2:1       (d)  1:3

Explanation

As we know that area of triangle is `1/2xx`base`xx`height___1

And area of ||gm = base`xx`height_____2

So, ratio of areas of triangle and ||gm is `(1/2xxbxxh)/(bxxh)`

=`1/2`

Hence, option(b) is correct.