Question
A person is standing at a point 120 meters away from a
tower. The angle of elevation to the top of the tower is 60°. If the height of the tower increases by 20 meters, the angle of elevation becomes 75°. Find the original height of the tower.Solution
Let the original height of the tower be h meters. From the angle of elevation of 60°: tan 60° = h / 120 → √3 = h / 120 h = 120√3. Answer: c) 120√3 m
If 49 × 23 = 41, 26 × 47 = 23 and 64 × 99 = 42, then 57× 68 = ?
Burma : Kyat:: Israel: ?
Three of the following letter-clusters are alike in some manner and hence form a group. Which letter-cluster does not belong to that group?
Select the option that is related to the third number in the same way as the second number is related to first number and the sixth number is related to...
Bee : Hum :: ?
Force : Newton :: Pressure :Â Â ?Â
In the following question, select the related word pair from the given alternatives.
Innovative: Creative :: Courageous: ?
...If PET = 16520 and PETER = 16520518, then PREHEAT =
Select the option that is related to third letter cluster in the same way second letter cluster is related to first letter cluster.
STABLE: XYVGQ...
The sentence below has a word in which the letters are jumbled up. Rearrange the letters of that word, written in capital letters, to form the correct w...
