What is the smallest digit that must be added to the product 5786 × 5784 to make it a perfect square?

Directions : The expenses of a country for a particular year is given in Pie–Chart. Read the Pie– Chart and answer the questions.

The percent of less money spent on nonplan than that on defense is 

The rate of work of A and B is in the ratio 2 : 3. What will be the ratio of the days taken by them to complete the work?

What should be the least added to 41116 so that the sum is divisible by 8?

A and B can do a work in 18 and 24 days respectively. They worked together for 8 days and then A left. The remaining work was finished by B in 

A certain sum (in Rs.) is invested at simple interest at x% p.a. for 5 years. Had it been invested at (x+5)% p.a, the simple interest would have been Rs.9,200 more than the earlier one. What is the sum?

Each exterior angle of a regular polygon measures 9°. How many sides does the polygon have?

A, B and C invested capital in the ratio 5: 7: 4, the timing of their investments being in the ratio x : y : z. If their profits are distributed in the ratio 45: 42: 28, then x : y : z = ?