1). Ten chairs and six tables together cost Rs.6200, three chairs and two tables together cost Rs.1900. The cost of 4 chairs and 5 tables is
A). Rs.3000 
B). Rs.3300 
C). Rs.3500 
D). Rs.3800 
 View Answer

2). The system of equations 3x + y  4 = 0 and 6x + 2y  8 = 0 has
A). a unique solution x = 1, y=1 
B). a unique solution x = 0, y = 4 
C). no solution 
D). infinite solutions 
 View Answer

3). If x+ y  7 = 0 and 3x + y 13 = 0, then what is \( \Large 4x^{2} + y^{2} + 4xy\) equal to?
A). 75 
B). 85 
C). 91 
D). 100 
 View Answer

4). The solution of the equations \( \Large \frac{p}{x}+\frac{q}{y} \ and \ \frac{q}{x}+\frac{p}{y} \) n is
A). \( \Large x=\frac{q^{2}p^{2}}{mpnq}, y=\frac{p^{2}q^{2}}{npmq} \) 
B). \( \Large x=\frac{p^{2}q^{2}}{mpnq}, y=\frac{q^{2}p^{2}}{npmq} \) 
C). \( \Large x=\frac{p^{2}q^{2}}{mpnq}, y=\frac{p^{2}q^{2}}{npmq} \) 
D). \( \Large x=\frac{q^{2}p^{2}}{mpnq}, y=\frac{q^{2}p^{2}}{npmq} \) 
 View Answer

5). If \( \Large \frac{3}{x+y}+\frac{2}{xy}=2 \) and \( \Large \frac{9}{x+y}\frac{4}{xy}=1 \), then what is the value of \( \Large \frac{x}{y} \)?
A). \( \Large \frac{3}{2} \) 
B). 5 
C). \( \Large \frac{2}{3} \) 
D). \( \Large \frac{1}{5} \) 
 View Answer

6). If \( \Large \frac{a}{b}\frac{b}{a}=\frac{x}{y} \) and \( \Large \frac{a}{b}+\frac{b}{a}= x  y \) , then what is the value of x?
A). \( \Large \frac{a+b}{a} \) 
B). \( \Large \frac{a+b}{b} \) 
C). \( \Large \frac{ab}{a} \) 
D). None of these 
 View Answer

7). If \( \Large \frac{x}{2}+\frac{y}{3}=4 \) and \( \Large \frac{2}{x}+\frac{3}{y}=1 \) then what is x + y equal to?
A). 11 
B). 10 
C). 9 
D). 8 
 View Answer

8). A mason can build a tank in 12 h. After working for 6 h, he took the help of a boy and finished the work in another 5 h. The time that the boy will take alone to complete the work is
A). 30 h 
B). 45 h 
C). 60 h 
D). 64 h 
 View Answer

9). A and B can do a job together in 12 days. A is 2 times as efficient as B. In how many days can B alone complete the work ?
A). 36 
B). 12 
C). 18 
D). 9 
 View Answer

10). A does 20% less work than B. If A can complete a piece of work in 7 1/2h, then B can do it in
A). 4 h 
B). 6 h 
C). 8 h 
D). 10 h 
 View Answer
