For the following questions answer them individually
Simple interest and compound interest(Compounding annually) on a principal at a certain rate of interest for 2 years is Rs.1600 and Rs.1760 respectively. What is the principal?
What is the value of $$\frac{\cos(50^\circ + A) - \sin(40^\circ - A)}{\cos 40^\circ \sec 40^\circ}$$?
In a $$\triangle PQR, PQ = 10$$ cm, $$QR = 12$$ cm and semiperimeter is 17 cm. What is the length of PR?
The line chart given below shows the cost price and selling price of four articles.
What is the ratio of average selling price of M and N to the average cost price of P and Q?
In a triangle XYZ, C is circumcentre of the triangle, $$\angle Y = 50$$ degree and $$\angle Z = 70$$ degree. What is the value of $$\angle YCZ$$?
The bar graph given below shows the expenditure of two companies L and M in different years.
Which of the following statement is correct?
I. The expenditure of company L in Y2 is 33.33 percent of the expenditure of M in year Y3.
II. The expenditure of company Min year Y5 is 100 percent of the expenditure of L in year Y4.
The following table shows the expenditure of a family from the year 2020 to 2022. What is the average amount of expenses on interest on loans in this period of time?
The expenditure and savings of a person are in ratio of 4 : 3. His savings increase by 1/5 of his income and income remains the same. What is the new ratio of his expenditure and savings?