The length of a rope, to which a cow is tied, is increased from 19m to 30m. How much additional ground will it be able to graze? Assume that the cow is able to move on all sides with equal ease.

A 1696 sq.m
B 1794 sq.m
C 1594 sq.m
D 1756 sq.m

Correct Answer: 1794 sq.m

The additional area = π<math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>(</mo><msup><msub><mi>r</mi><mn>1</mn></msub><mn>2</mn></msup><mo> - </mo><msup><msub><mi>r</mi><mn>2</mn></msub><mn>2</mn></msup><mo>)</mo><mi mathvariant = "normal">&#x3C0;</mi><mo>(</mo><msup><mn>30</mn><mn>2</mn></msup><mo> - </mo><msup><mn>19</mn><mn>2</mn></msup><mo>)</mo></math> = 1694 sq. m
Bissoy MCQ
#গণিত #শতকরা (Percentage) #Mutual Trust Bank Ltd #Mutual Trust Bank ltd - Management Trainee Officer - 16.05.2014

Related Questions

A goat is tied to one corner of a square plot of side 12m by a rope 7m long. Find the area it can graze?
A 19.25 sq.m
B 155 sq.m
C 144 sq.m
D 38.48 sq.m
A rope 2-.6 meters long cut is into two pieces .If the length of one piece of rope is 2.8 meters shorter than the length of the other , what is the length , in meters, of the longer piece of rope?
A 7.5
B 11.7
C 8.9
D 10.3
A lift of weight W is lifted by a rope with an acceleration f. If the area of cross-section of the rope is A, the stress in the rope is
A $$\frac{{{\text{W}}\left( {1 + \frac{{\text{f}}}{{\text{g}}}} \right)}}{{\text{A}}}$$
B $$\frac{{\left( {1 - \frac{{\text{g}}}{{\text{f}}}} \right)}}{{\text{A}}}$$
C $$\frac{{{\text{W}}\left( {2 + \frac{{\text{f}}}{{\text{g}}}} \right)}}{{\text{A}}}$$
D $$\frac{{{\text{W}}\left( {2 + \frac{{\text{g}}}{{\text{f}}}} \right)}}{{\text{A}}}$$
m এবং 2m ভরের দুটি আয়তাকার বাক্স একটি ঘর্ষণহীন অনুভূমিক পৃষ্ঠে একটি দড়ি দ্বারা সংযুক্ত। F মাত্রার একটি সম্মুখ বল দ্বারা ভারী বাক্সটিকে ডানদিকে টানা হচ্ছে। ফলে, হালকা বাক্সটি দড়ি দ্বারা টান অনুভব করে। দড়িটিতে টান কত? (Two rectangular boxes of masses m and 2m are on a frictionless horizontal surface and connected by a rope. A forward force of magnitude F is pulling the more massive box toward right. As a result, the less massive box is pulled by the rope. What is the tension in the rope?)
A F
B F/6
C F/3
D F/2
একটি তড়িৎ দ্বিমেরু মধ্যবর্তী দুরত্ব 3×10-19m এবং চার্জর পরিমাণ 3.2×10-9C ।এই দ্বিমেরু হতে 3c.m দূরে এর অক্ষের লম্ব দ্বিখন্ডকের উপর তড়িৎ প্রাবল্য 3.2×10-15 NC হলে দ্বিমেরুর ভ্রামকের মান-
A 3×1015×3.2×10-9
B 3×10-2×3.2×10-9
C 14πE 3.2×10-93×10-2
D 3×10-5×3.2×10-9
A light rope is loaded with many equal weights at equal horizontal intervals. The points of suspension on the rope lie on a
A Parabola
B Catenary
C Cycloid
D Ellipse
A rope cut into 3 pieces with each piece twice as long as the previous one. If the length of longest piece is 3 meter ,What was the length of the rope in meter ?
A 6.5
B 6
C 5.5
D 5.25
A horse is tied to a post with a twenty -foot rope. what is the longest path that the hours can walk?
A 20 ft
B 40 ft
C 20 pie ft
D 40 pie ft
A rectangular plot of land has a fence along three of its four sides. The undenced side and the side opposite the unfenced side have a length that is three times thel length of the other two sides. If the area of the plot is 432 square feet, what is the total length id the fence in feet.
A 60
B 72
C 80
D 90
A Tiebreaker is an additional contest or period of play designed to establish a winner among tied contestants. Which situation below is the best example of a Tiebreaker?
A At halftime, the score is tied at 28.
B Mary and Megan have each scored three goals in the game.
C The referee tosses a coin to decide which team will have possession of the ball first.
D The Sharks and the Bears each finished with 14 points, and they are now battling it out in a five-minute overtime.

Next steps