There is a ship which is moving away from an iceberg 150 m high, takes 2 mins to

Sail E0 Webinar

Question

There is a ship which is moving away from an iceberg 150 m high, takes 2 mins to change the angle of elevation of the top of the iceberg from 600 to 450. What is the speed of the ship?

Options:

A . 2.46 kmph

B . 1.3 kmph

C . 1.9 kmph

D . 1.7 kmph

Answer: Option C
:
C

In a 45-45-90 triangle, sides are in the ratio 1:1: $\sqrt{2}$
Thus OB= 150
In a 30-60-90 triangle, sides are in the ration 1: $\sqrt{3}$ :2
Thus OA= $\frac{150}{\sqrt{3}}$
Distance travelled in 2 mins = AB
= 150- 50 $\sqrt{3}$ = 63.4 m
speed = $(\frac{63.4}{2}) \times (\frac{60}{1000})$ = 1.9 kmph

Was this answer helpful ?

Next Question

Submit Solution

More Questions on This Topic :

Question 1. Let f(x) be a function with the two properties: ....

Question 2. Suppose f(x) = (x+1)3. If g(x) is the function whose graph is reflection of the graph of f(x) with respect to the line....of g(x) with respect to the x-axis, then h(8) equals: ___

Question 3. An bullet can travel in the air at a speed of 1000 kmph. When walls of 10 cm thickness are placed in its path, the spe....out of the final wall in its path is :___

Question 4. A synthetically developed microorganism multiplies continuously by giving birth to two new cells once in every minute. A....in the dish at the end of the 20th minute?

Question 5. Find the tens place of the number 7281×3264. ....

Question 6. If a, b, c are three consecutive natural numbers, then the expression (a + b - c) (a + c - b) (b + c - a) is: ....+ c - b) (b + c - a) is:

Question 7. In the following figure, arc AB is a quadrant of the circle with centre at point O and radius 4 units. Further, OC = OD,....X. What is the radius(in units) of the circle C?

Question 8. g(x) is defined as the sum of all the divisors of a natural number n. If g(x) is less than 2n then it is placed in cat....which can be placed in A and another in B?

Question 9. A merchant mixes three varieties of rice costing Rs.20/kg, Rs.24/kg and Rs.30/kg and sells the mixture at a profit of 20....kgs of the third variety is there in the mixture?

Question 10. Let Tn be defined as the sum to n terms of the series T. Find T34 T=288−287−286−285....... ....sum to n terms of the series T. Find T34 T=288−287−286−285.......

Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)

Direction Sense Test Part 1 Reasoning (Hindi)

Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE

Cube & Cuboid Part 1 Reasoning (Hindi)

Data Interpretation (DI) Basic Concept Reasoning (Hindi)

Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)

Sail E0 free webinar Webinars

Real Numbers Part 7 Class 10 Maths

Real Numbers Part 1 Class 10 Maths

Polynomials Part 1 Class 10 Maths

Chapter 3.1 : Overview of Finance & Accounts Department Chapter 3 : Finance & Accounts SAIL E0 - GFM 2024

Chapter 2.1 : Overview Chapter 2 : Materials Management SAIL E0 - GFM 2024

Chapter 1.1 : Personnel Functions- An overview Chapter 1 : Personnel Management SAIL E0 - GFM 2024

GPOE / GPA Combined 1 Free CBT Mock Test SAIL E0 2024

CBT Mixed Test 1 GPOE/GPA SAIL E0 2024