Question : An elephant of length 4 m is at one corner of a rectangle cage of size (16m × 30m) and faces towards the diagonally opposite corner. If the elephant starts moving towards the diagonally opposite corner, it takes 15 seconds to reach this corner. Find the speed of the elephant.
Option 1: 1 m/sec
Option 2: 2 m/sec
Option 3: 1.87 m/sec
Option 4: 1.5 m/sec
New: SSC CHSL tier 1 answer key 2024 out | SSC CHSL 2024 Notification PDF
Recommended: How to crack SSC CHSL | SSC CHSL exam guide
Don't Miss: Month-wise Current Affairs | Upcoming government exams
New: Unlock 10% OFF on PTE Academic. Use Code: 'C360SPL10'
Correct Answer: 2 m/sec
Solution : Given: Length of rectangular cage = 16 metre Breadth = 30 meter Time = 15 seconds Now, $AC = \sqrt{AB^2+BC^2}$ $= \sqrt{30^2+16^2}$ $= \sqrt{900+256} = \sqrt{1156} = 34$ metre Distance travelled by elephant = $AC$ - length of the elephant = 34 – 4 = 30 metre Speed of the elephant = $\frac{\text{Distance travelled by the elephant}}{\text{time}}$ = $\frac{30}{15}$ = 2 m/s Hence, the correct answer is 2 m/sec.
Candidates can download this e-book to give a boost to thier preparation.
Result | Eligibility | Application | Admit Card | Answer Key | Preparation Tips | Cutoff
Question : The speed of a car is 54 km/hr. What is its speed in m/sec?
Question : If $m = \sec \theta- \tan \theta$ and $n = \operatorname{cosec} \theta + \cot \theta$, then what is the value of $m + n(m-1)$?
Question : Find the value of the following expression $\frac{(1+\sec\phi)}{\sec\phi}(1-\cos\phi)$.
Question : A horse takes $2\frac{1}{2}$ seconds to complete a round around a circular field. If the speed of the horse was 66 m/sec, then the radius of the field is: [Given $\pi =\frac{22}{7}$]
Question : Two trains that are 125 m and 99 m in length, respectively, are running in opposite directions at the speeds of 40 km/h and 32 km/hr, respectively. In how much time will they be completely clear of each other from the moment they meet?
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile