IMO- Mathematics Olympiad Class 10: Questions 227 - 231 of 908

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 908 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 450.00 or

Question number: 227

» Pair of Linear Equations in Two Variables

MCQ▾

Question

The value of k, for which the system of equations kx3y+6=0,4x6y+15=0 represent parallel lines is ________

Choices

Choice (4) Response

a.

3

b.

2

c.

1

d.

4

Question number: 228

» Pair of Linear Equations in Two Variables

MCQ▾

Question

Places P1 and P2 are 250 km apart from each other on a national highway. A car starts from P1 and another from P2 at the same time. If they go in the same direction then they meet in 5 hours and if they go in opposite directions they meet in 2513 hours. The speeds of the cars are ________

Choices

Choice (4) Response

a.

90kmhr,40kmhr

b.

20kmhr,60kmhr

c.

50kmhr,12kmhr

d.

40kmhr,80kmhr

Question number: 229

» Polynomials

MCQ▾

Question

The sum of the reciprocals of the roots of the equation 2x244x60=0 is ________

Choices

Choice (4) Response

a.

1115

b.

1511

c.

1115

d.

1511

Question number: 230

» Polynomials

MCQ▾

Question

If 1 is one of the zeroes of polynomials x2x+k , and then the value of k is ________

Choices

Choice (4) Response

a.

4

b.

0

c.

-2

d.

2

Question number: 231

» Pair of Linear Equations in Two Variables

MCQ▾

Question

The solution of the system of equations 2x+5yxy=6 and 4x5yxy+3=0(wherex0,y0) , is ________

Choices

Choice (4) Response

a.

x=1,y=2

b.

x=1,y=2

c.

x=1,y=2

d.

x=0,y=0

Sign In