Question
A man travels a total distance of 500 km. He covers 48%
of the distance at a speed of 60 km/h and the remaining distance at a speed of 'y' km/h, taking a total of 9 hours for the entire journey. What is the distance he covers in 2 hours if his speed is (y + 3) km/h?Solution
Time taken to cover 48% of total journey = (0.48 X 500) ÷ 60 = 4 hours Remaining distance = 0.52 X 500 = 260 km Remaining time = 9 - 4 = 5 hours So, 'y' = (260/5) = 52 So, required distance = (52 + 3) X 2 = 110 km
If '+' means '-', ' X ' means '+', '-' means '÷' and '÷' means ' X ', then what is the value of the following expression?
480 - 12 + 250 X 3...
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...Select the correct combination of mathematical signs that can sequentially replace ‘*’ sign and balance the equation given below.
66 * 32 * 8...
Select the correct combination of mathematical signs that can sequentially replace the ‘*’ signs and balance the given equation.
12 * 8 * 42 ...
Select the correct combination of mathematical signs that can sequentially replace the * signs and balance the given equation.
32 * 366 * 6 * 2 * 134 = 20
If ‘A’ means (÷), ‘B’ means (×), ‘C’ means (+), and ‘D’ means (-), then ____ is the value of the expression.
36 A 6 B 6 D 6 ...
If '+' means '-', 'X' means '+', '-' means '÷', and '÷' means 'X', then what is the value of the following expression? 120 - 10 + 60 X 5 ÷ 3 X 15
...By interchanging the given two numbers (not digits), which of the following equations will be correct?
24 and 9
I. 113 + 24 – 20 × 9 ÷...
If ‘P’ means (×), ‘Q’ means (÷), ‘R’ means (-), and ‘S’ means (+), then what is the value of the expression:
54 Q 6 S 14 P 14 R...
If ‘$’ means ‘÷’, ‘#’ means ‘-’, ‘!’ means ‘×’ and ‘^’ means ‘+’, then the value of 84 ! 5 # 6 ^ 21 $ 7 is
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