Question

A field of maize yields about 0.65 quintals of corn kernels. If a kernel has a mass of $200g$, how many corn kernels are obtained in total?

• A. 325

Answer 1

The correct option is A 325
Given:
The total mass of the corn kernels yielded from the field of maize, $M=0.65q$
Mass of one corn kernel, $m=200g$

One quintal is the mass of one hundred kilograms,
i.e. $1q=100kg$
$⟹M=0.65\times 100=65kg$
Also $1kg=1000g$
$⟹M=65\times 1000=65000g$

Number of corn kernels obtained from the crop, $n=\frac{M}{m}=\frac{65000}{200}=\frac{650}{2}$
$n=325$.