An aeroplane flys around squares whose all sides are of length `100` miles. If the aeroplane covers at a speed of `100 mph` the first side, `200 mph`

An aeroplane flys around squares whose all sides are of length `100` miles. If the aeroplane covers at a speed of `100 mph` the first side, `200 mph` the second side `300 mph` the third side and `400 mph` the fourth side. The average speed of aeroplane around the square is
A. `190mph`
B. `195mph`
C. `192mph`
D. `200mph`

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

Salim Ahmed Kawsar

Correct Answer - C
`(c )` `"Average speed"=H.M`
`(4)/((1)/(100)+(1)/(200)+(1)/(300)+(1)/(400))=192`

5 views Answered 2023-02-05 15:29

Related Questions

If the squares of a `8 xx 8` chess board are painted either red and black at random .The probability that not all squares is any alternating in colour

2 Answers 9 Views

Consider the following sets: A = set all rectangles in the same plane B = set all squares in the same plane C = set all parellegrams in the same plane

2 Answers 5 Views

The longest side of a triangle is three times the shortest side and the third side is 2 cm shorter than the longest side if the perimeter of the trian

2 Answers 4 Views

Prove that `^100 C_2^(100)C_2+^(100)C_2^(100)C_4+^(100)C_4^(100)C_6++^(100)C_(98)^(100)C_(100)=1/2[^(200)C_(98)-^(100)C_(49)]dot`

2 Answers 5 Views

The value of `((100),(0))((200),(150))+((100),(1))((200),(151))+......+((100),(50))((200),(200))` equals (where `((n),(r ))="^(n)C_(r)`)

2 Answers 6 Views

An aeroplane A, is travelling in a straight line with a velocity of 300 km/hr with respect to Earth. Another aeroplane B, is travelling

2 Answers 6 Views

Each side of an equilateral triand 12 is \( 24 cm \) the mid - point of its sides are joined to form another tranpla this brress is doins centinuously infinite 46. The perimeter of 7 th triangle is \( ( \) in \( cm ) \) a) \( \frac{3}{4} \) b) \( \frac{5}{8} \) c) \( \frac{9}{8} \) d) \( \frac{7}{8} \) 47. The sum of perimeter of all triangle is (in \( cm \) ) a) 144 b) 625 c) 400 d) 169 48. The area of all the triangle is (in sq cm) a) 576 b) \( 144 \sqrt{3} \) c) \( 169 \sqrt{3} \) d) \( 192 \sqrt{3} \) 49. The sum of perimeter of first 6 triangle is (in \( cm \) ) a) 120 b) \( \frac{567}{4} \) c) \( \frac{569}{4} \) d) 144 50. The side of the 5th triangle is (in \( cm \) ) a) 6 b) \( 1.5 \) c) \( 0.75 \) d) 3

2 Answers 5 Views

Find the missing numbers in the following table. (i) Changing kilometers into miles. `{:("Numbers of kilometers",5,10,15,20,25,30),("Number of miles",

2 Answers 4 Views

A person moves towards north with uniform speed of 15 m/s and cover 16 m. After this he moves towards east and covers 6 m and finallt covers 8 m dista

2 Answers 5 Views

An aeroplane id flying at a height of 300 m above the ground. Fying at this height , theangles of depression from the aeroplane of two points on both

2 Answers 4 Views

এক্সাম দিয়ে মেধা যাচাই করুন

Job Preparation (1125)

Admission (754)

এসএসসি (10)

এইচএসসি (5)