If (x + k ) is the common factor of x² + ax + b and x² + cx + d , then what is k equal to ?

If the perimeter of a rhombus is 80 cm and one of its diagonals is 24 cm, then what is the are (in cm²) of the rhombus?

Rs. 1,080 invested for 3 months gave an interest of Rs. 27. The simple rate of interest per annum was :

If AD, BE and CF are medians of ∆ABC, then which one of the following statements is correct? 

The speed of a train is 4/7 of the speed of a car. The car covers 252 m. distance in 9 seconds. In what time will the train cover a distance of 64m.?

In a race of 200 metres, B can give a start of 10 metres to A and C can give a start of 20 metres to B. The start that C can give to A, in the same race, is

Directions: The Pie chart given here represents the domestic expenditure of a family in per cent. Study the chart and answer the following questions if the total monthly income of the family is ₹ 33,650.

A: Expenditure on food

B: Expenditure on house-rent

C: Expenditure on entertainment

D: Expenditure on education and maintenance of children

E: Medical and miscellaneous expenditure

F: Deductions towards provident fund

The house rent per month is :

The given pie chart shows the percentage of students enrolled for the courses A, B, C, D and E in a university and the table shows the percentage of students that passed, out of the enrolled students.
Total Students=60,000

How many students passed in Course B?