Pair of Linear Equations in Two Variables (IMO- Mathematics Olympiad Class 10): Questions 1 - 5 of 82

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Question number: 1

» Pair of Linear Equations in Two Variables

MCQ▾

Question

At the end of the year 2006, Prit was half old as his grandpa. The sum of the years in which they were born is 3922. Age of Prit at the end of year 2007 is ________

Choices

Choice (4) Response
a.

21 years

b.

41 years

c.

31 years

d.

51 years

Question number: 2

» Pair of Linear Equations in Two Variables

MCQ▾

Question

Places X1 and X2 are 120 km apart from each other on a national highway. A car starts from X1 and another from X2 at the same time. If they go in the same direction then they meet in 6 hours and if they go in opposite directions they meet in 65 hours. The speeds of the cars are ________

Choices

Choice (4) Response
a.

50kmhr,20kmhr

b.

20kmhr,30kmhr

c.

70kmhr,80kmhr

d.

60kmhr,40kmhr

Question number: 3

» Pair of Linear Equations in Two Variables

MCQ▾

Question

The digit at the ten’s place of a two digit number is twice the digit at the unit’s place. If the sum of this number and the number formed by reversing the digits is 99, find the number.

Choices

Choice (4) Response
a.

36

b.

52

c.

63

d.

24

Question number: 4

» Pair of Linear Equations in Two Variables

MCQ▾

Question

The ratio between a two – digit number and the sum of digits of that number is 4:1 . If the digit in the unit place is 3 more than the digit in the tenth place, what is the number?

Choices

Choice (4) Response
a.

40

b.

24

c.

63

d.

36

Question number: 5

» Pair of Linear Equations in Two Variables

MCQ▾

Question

The value of k for which the system of equations x+2y3=0and5x+ky+7=0 has no solution, is ________

Choices

Choice (4) Response
a.

3

b.

1

c.

10

d.

6

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