Rupesh Pathak and Vaishali Bhatia Solutions for Chapter: Playing with Numbers, Exercise 2: Exercise 5.1

Check the first number is divisible second or not. Also give reasons.

$6231, 3$

Check the first number is divisible second or not. Also give reasons.

$50505, 10$

Check the first number is divisible second or not. Also give reasons.

$985, 5$

Replace $\mathrm{x}$ by suitable digits.

$61\mathrm{x}6$ is divisible by $3$

Replace $\mathrm{x}$ by suitable digits.

$61\mathrm{x}6$ is divisible by $9$

Replace $\mathrm{x}$ by suitable digits.

$1\mathrm{x}4$ is divisible by $3$

Replace $\mathrm{x}$ by suitable digits.

$75\mathrm{xx}$ is divisible by $9$

Replace $\mathrm{x}$ by suitable digits.

$9\mathrm{x}18$ is divisible by $9$