Speed of a along and against the current are 14 km / hr and 8 kms/hr respectively. The speed of the current is:

The average of 10 observations is 21. A new observation is included and the average of these 11 numbers is 1 less than the prevoius average. The 11^th observation is____

Directions: The table given here shows the production of five types of cars by a company in the year 1989 to 1994. Study the table and answer questions.

In which year the total production of cars of types P and Q together was equal to the total production of cars of types R and S together?

The product of 2 numbers is 1575 and their quotient is 9/7. Then the sum of the numbers is –

If 9x² + y² = 37 and xy = 2, x, y>0, then the value of (27x³+ y³) is:

In the given question, two equations numbered l and II are given. Solve both the equations and mark the appropriate answer.

I. x² - 28x + 195 = 0

II. y²- 21y + 108 = 0

The side QR of an equilateral triangle PQR is produced to the point S in such a way that QR = RS and P is joined to S. Then the measure of ∠PSR is

A kite in the shape of a square with a diagonal 32 cm attached to an equilateral triangle of the base 8 cm. Approximately how much paper has been used to make it? (Use √3 = 1.732)