Question
A man can row at 2 kmph in still water. If the velocity
of current is 1 kmph and it takes him 4 hour to row to a place and come back, how far is the place?Solution
Let the distance be x km. Speed upstream = 2 – 1 = 1 kmph Speed downstream = 2 + 1 = 3 kmph => (x/3) + (x/1) = 4 => (x + 3x)/3 = 4 => 4x = 12 => x = 3 km
If ‘%’ means (÷), ‘#’ means (-), ‘@’ means (×), and ‘&’ means (+), then what is the value of the expression:
42 & 12 # 25 % 5 @...
If ‘+’ means ‘-’, ‘×’ means ‘+’, ‘-’ means ‘÷’ and ‘÷’ means ‘×’, then what is the value of the following expression...
0.75% of 705 + 2.25% of 225 + 2.03% of 203 =?
Select the correct combination of mathematical signs that can sequentially replace the * signs and balance the given equation.
60 * 48 * 36 * 6 * 15 * 53
A $ B means A X B, A & B means A - B, A % B means A ÷ B and A # B means A + B, then what is the value of 320 & 80 # 120 % 24 $ 50?
If ‘<’ means ‘subtract’, ‘>’ means ‘addition’, ‘%’ means ‘multiplication’ and ‘$’ means ‘division’, then 55 > 24 $ 4 < 8...
'!' means '÷', '$' means ' X ', '#' means '+' and '&' means '-' then what would be the value of the expression given below?
Expression: 63 $ ...
If 'P' stands for '+', 'Q' stands for '×', 'R' stands for '-', and 'S' stands for '÷', then what is the value of the following expression?
64 S...
If ‘-‘ stands for division ‘+’ stands for subtraction ‘÷’ stands for multiplication ‘×’ stands for addition, then which one of the fol...
Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation.
400 * 100 * 25 * 15 * 12 = 352
Relevant for Exams:
