Question

1. Test the divisibility of $387144$ by $6$.

2. Place commas correctly and write the numerical-Four crore fifty thousand sixteen.

3. How many right angles are there in $\frac{3}{4}$ of a revolution?

Answer 1

1. $387144$ is divisible by $2$ because last digit is even

Now it is divisible by $3$ also because digit sum $=27$

which is divisible by $3$

so it is also divisible by $6$

2. Four crore fifty the used sixteen

$40,050,016$

After every $3$ digits from right, are comma is placed

3. Total right angles in $\frac{3}{4}$ of a revolution $=\frac{3}{4}\times \frac{{360}^o}{{90}^o}$

$=\frac{3}{4}\times 4$ $=3$