Shashi sells two articles for ₹5,000 each with no loss and no profit in the overall transaction. If one article is sold at $$16{2\over 3}\%$$loss, then the other is sold at a profit of:

Find the value of $$ (2 {1\over6}+1 {13\over18}-{1\over6}) × {16÷4}$$

Study the given graph and answer the question that follows.

If 60% of the total number of students obtaining 50 marks or more but less than 70 marks are girls and 55 % of the total number of students obtaining 70 marks or more but less than 90 marks are also girls. Then the total number of girls obtaining 50 marks or more but less than 90 marks is:

If $$ {y={2x-1\over x+3}}$$ find x when y=1

Solve: 12–[26–{2+5×(6–3)}]

If $$ {a\over 3}={b\over3}={c\over4}$$ then find the value of $$ {a+b+c\over c}$$.

AB is diameter of a circle with centre 'O'. CD is a chord which is equal to the radius of the circle. AC and BD are extended so that they intersect each other at point P. Then find the value of ∠ APB.

A circle touches all four sides of a quadrilateral ABCD. If AB = 18 cm, BC = 21 cm and  = 15 cm, then length CD is: