Question
I. 6 y² + 11 y – 7= 0 II. 21 x² + 5 x – 6 =
0 In the following questions, two equations numbered I and II are given. You have to solve both the equations and give answer.Solution
I. 6 y² + 11 y – 7= 0 6 y² + 14 y - 3 y– 7= 0 2 y(3 y + 7) – 1(3 y + 7) = 0 (2 y – 1)(3 y + 7) = 0 y = 1/2,- 7/3 II. 21 x² + 5 x – 6 = 0 21 x² + 14 x - 9 x – 6 = 0 7 x(3 x + 2) – 3(3 x + 2) = 0 (7 x – 3)(3 x + 2) = 0 x = 3/7, -2/3 Hence, relationship cannot be established between x and y
'A' and 'B' started a business by investing Rs. 2,000 and Rs. 5,000, respectively. Ten months later, 'C' joined by investing Rs. 'P'. If at the end of ...
‘A’, ‘B’ and ‘C’ started a business by investing Rs. 4,000, Rs. 4,800 and Rs. 3,200, respectively. After 6 months, ‘B’ decreased his inv...
A started a business with an investment of Rs 16,000. After 2 months B joins in with 5/8 of the amount that A invested and A withdraws Rs 4,000. After 2...
'A', 'B' and 'C' started a partnership business with capital of Rs. 5000, Rs. 7000 and Rs. 9000 where all three invested for equal time. If the profit ...
'Kevin' began a business with Rs.14,000. 'Liam' joined after 'c' months with Rs.21,000. Given their profit ratio by year-end was 14:21, find c2
In a business there are two partners ‘P’ and ‘Q’. ‘P’ started the business with the capital of Rs. 20000 and after 3 months ‘Q’ joined h...
A and B invest in a business in the ratio 3:4. After 10 months B leaves the business after withdrawing his investment. In the first year the business ma...
Four people P, Q, R and S started a business. The initial investment of P is Rs. 500 less than the initial investment of R. The ratio between the initia...
M and N started a business by investing Rs.5000 and Rs.6800 respectively. After 6 months, M and N increased their investments by 40% and Rs.2400 respect...
Amit and Bittu entered into a business with initial investment of Rs 420 and Rs 360 individually. After 5 months, Amit add on 180 more while Bittu withd...
Relevant for Exams:
