Martha was excited to see the new calculator that her mother bought to help her in her work. Her mother explained her how it worked.
Martha then tried to solve a mathematics problem. She accidentally multiplied a number by 5 when she had to divide it by 5.
The result appeared as 75.
Find the correct answer if Martha tries to solve it again.

Q. Martha gave one-third of her chocolates to her brother, Jerry and one-sixth of her chocolates to her friend, Julia. She was then left with $30$ chocolates. How many chocolates did she give to Jerry and Julia in total?

Q. Martha drives from Jefferson to Holden, a distance of $250$ miles. She then travels on to Paxton, which is $50$ miles from Holden. If it takes her $5$ hours to complete the entire trip, how fast was she traveling if she was traveling at a constant rate?

Q. Alice needs to figure out the subtraction problem that her teacher asked her to solve. Help her solve it.

Q. An addition problem is given to Suzie to solve in her mathematics class. Help her solve this problem.

Q. Preeti bought a network service to use with her cell phone. It worked for a few days, but then, it stoped working. She called the helpline, but she was never able to tell her problem properly. The custmer care service kept telling her to hold on calls and transferring her to one call after another until she got frustarted and gave up.

What consumer rule is being denied to Preeti?