A sum of money was invested at a certain rate of simple interest for 2 years. Had it been invested at 1% higher rate, it would have fetched Rs.192 more interest. The sum of money is-

Simplify $$ ({Sinθ\over{1+cosθ}}+{1+cosθ\over sinθ})({1\over (tanθ+cotθ)})$$

A student multiplies a number by 5/3 instead of 3/5. What is the percentage error in the calculation?

On dividing a certain number by 342 we get 47 as remainder. If the same number is divided by 18, what will be the remainder?

Raju ate $$3\over 8$$part of a pizza and Adam ate $$3\over 10$$ part of the remaining pizza. Then Renu ate $$4\over 7$$ part of the pizza that was left. What fraction of the pizza is still left?

The area of a triangle is 96 cm² and the ratio of its sides is 6 : 8 : 10. What is the perimeter of the triangle?

What is the area of the largest triangle that can be fitted into a rectangle of length 'l' units and width 'w' units?

$$ {x^{8}+4\over{x^{4}+2x^{2}+2}}$$ is equal to