If $${17}^{200}$$ is divided by 18, the remainder is:

In an alloy, there is 12 % of copper, to get 69 kg of copper, how much alloy will be required? 

A train passes two bridges of length 400 m and 200 m. in 50 seconds and 30 seconds respectively. The length of the train is-

What should come in place of the question mark (?) in the following question?
19.5% of 524 = 50% of ?

Marked price of an item is Rs 200. On purchase of 1 item discount is 22 % on purchase of 4 items discount is 33 % Rabia buys 5 items, what is the effective discount? 

16 men can complete a piece of work in 7 days. In how many days will 28 men complete the same work?

If 2sin²θ–5sinθcosθ+7cos²θ=1then possible values of tan θ are

One number is 50% less than X and another number is 20 percent less than X. What is the ratio of both the numbers?