Ratio of the income of A and B is 8 : 5, while expenditures is in the ratio 5 : 3. If they have saved Rs. 12,000 and Rs. 10,000 monthly respectively, then the difference in their monthly incomes is: 

Which of the following simplification value of $$ {(secA-cosA)^{2}}+{(cosecA-sinA)^{2}}-{(cotA-tanA)^{2}}$$ ?

Simplify $$ \sqrt{(1-sin^{2}θ) ÷(1-cos^{2}θ)}$$.

A, B and Center into a partnership with capitals in the ratio 5: 6: 8. At the end of the business term, they received the profit in the ratio 5: 3: 12. Find the ratio of time for which they contributed their capitals? 

3x² = 36 then what is the value of x?

Direction: In the following questions two equations numbered I and II are given. You have to solve both the equations and give answer.
(A) x>y
(B) x≥y
(C) x˂y
(D) x≤y
(E) x=y or the relations ship cannot be established

 I. x²-7x + 12 = 0
II. y² - 12y + 32 = 0 

If A:B = $$ {3\over 4}$$ : $$ {5\over 2}$$  and B:C= $$ {1\over2}:{3\over 5}$$ then what is the ratio of A:B:C=?

Evaluate: $$ {9।3-5।-5।-5।4।÷10\over-3(5)-2×4÷2}$$