A man is standing 30 meters away from the foot of a tree. The angle of elevation from his eyes to the top of the tree is 60 degrees. Find the height of the tree.
Let the height of the tree be h meters. Using the tangent of the angle of elevation: tan(60°) = h / 30 √3 = h / 30 h = 30√3 meters Thus, the height of the tree is 30√3 meters.
What will be the value of expression if the numbers/digits ‘(42)’ and ‘(18)’ are interchanged?
54 ÷ 42 × 10 + 18 – 12 + 20
...Study the given pattern carefully and select the number that can replace the question mark (?) in it.
4 7 6
15 ? 21
44 68 60
If “ A ” denotes “added to”, “ B ” denotes “divided by”, “ C ” denotes “multiplied by” and “ D ” denotes “subtracted from...
If ‘@’ means ‘+’, ‘#’ means ‘-’, ‘$’ means ‘×’ and ‘%’ means ‘÷’, then what is the value of the following expression?<...
If ‘#’ means ‘-’, ‘@’ means ‘+’, ‘$’ means ‘÷’ and ‘&’ means ‘×’, then what is the value of the following expression?<...
If '+' means ' - ', ' X ' means '+', ' - ' means '÷' and '÷' means ' X ', then what is the value of the following expression?
14 ÷ 5 x 63 - 9 ...
If × stands for 'addition', ÷ stands for 'subtraction', + stands for 'multiplication' and - stands for 'division', then 31 × 18 ÷ 20 - 5 + ...
Given below an equation having four blanks you have to check from the alternatives which among the given is correct?
16 _ 22 _ 11 _ 8 _ 40
If, 'A $ B' means 'A + B', 'A & B' means 'A ÷ B', 'A % B' means 'A X B' and 'A # B' means 'A - B', then what is the value of the given equation?
If ‘%’ means (÷), ‘&’ means (+), ‘$’ means (×), and ‘@’ means (-), then what is the value of the expression:
25 & 35 % 7 @ 14 $...
