Discussion
PQRS is a parallelogram in which PQ = (4x + 1) cm, QR = 26 cm, RS = 25 cm and PS = (3y - 1) cm. Then, the value of (3x + 2y) (in cm) is :
Answer: C
The value of \((3x + 2y)\) is 36.
Opposite sides of a parallelogram are equal, so PQ = RS and QR = PS:
\[ \begin{aligned} 4x + 1 &= 25 \Rightarrow x = 6 \\ 3y - 1 &= 26 \Rightarrow y = 9 \\ 3x + 2y &= 18 + 18 = 36 \end{aligned} \]
Pairing the wrong sides (PQ with QR, or PS with RS) gives fractional values and none of the other options.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development