Related InterviewSolutions

• A pair of linear equations which has a unique solution x = 2 and y = -3 isA. x + y = 1 and 2x - 3y = -5B. 2x + 5y = -11 and 4x + 10y = -22C. 2x - y =1 and 3x + 2y = 0D. x - 4y - 14 = 0 and 5x - y - 13 = 0
• Solve the following system of equations .`x/p+y/q=1`, `p(x-p)-q(y+q)=2p^2 + q^2`
• One equation of a pair of dependent linear equations is `-5x + 7y -2 = 0`. The second equation can beA. `10x + 14 y + 4 = 0`B. `-10x - 14y +4 =0`C. `-10 +14y +4 =0`D. `10x - 14y + 4 = 0`
• Vijay had some bananas and he divided them into two lots A and B. He sold the first lot at the rate of RS. 2 for 3 bananas and the second lot at the rate of Rs 1 per banana and got a total of Rs. 400. If he had sold the first lot at the rate of Rs. 1 per banana and the second lot at the rate of Rs.4 for 5 bananas , his total collection would have been Rs 460. Find the total number of bananas he had.
• `(3x)/2-(5y)/3=-2`, `x/3+y/2=13/6`
• `2x + y = (7xy)/3, x+3y = (11xy)/3`
• If a pair of linearequations in two variables is consistent, then the lines represented by twoequations areA. parallelB. always coincidentC. intersecting or coincidentD. always intersecting
• There are some students in the two examination halls A and B. To make the number of students equal in each hall, 10 students are sent from A to B but, if 20 students are sent from B to A, the number of students in A becomes double the number of students in B, then find the number of students in the both halls.
• The sum of a two–digit number and the number obtained by reversing the digits is 66. If the digits of the number differ by 2, find the number. How many such numbers are there?
• A two-digit number is obtained by either multiplying the sum of the digits by 8 and then subtracting 5 or by multiplying the difference of the digits by 16 and then adding 3. Find the number.