If $\sqrt{9+\sqrt{y}}=\sqrt{y+3},$ then y could be equal to which of the following?

The cost of 18 articles is the same as the selling price of n articles. If the profit is 20%. Then what is the value of n?

Zaid's mother contributes to her son's savings by giving him 10% of his total savings. If Zaid saves Tk.200 in June, Tk. 250 in July and Tk.150 in August. How much will he have in savings at the end of August?

A seasoned workers efficiency is twice as much as an apprentice's. If they work together for 10 days on a project and earn Tk.45000 together, what is the daily wage of the apprentice?

List A has 8 consecutive even integers and List B has 6 consecutive odd integers. The smallest number in List A is 5 more than the smallest number in B. How larger is the mean of the numbers in A than mean of the numbers in B?

In the first 10 overs of a cricket game, the run rate was only 3.2. What should be the run rate in the remaining 40 overs to reach the target of 282 runs?