Question
Average speed of ‘A’ during a 20-hour journey is 28
km/h. If he covered the first 240 km of his journey at a speed of 20 km/h, then find the speed at which ‘A’ travelled during the remaining journey.Solution
Total distance covered by ‘A’ = 20 × 28 = 560 km Time taken to cover 240 km = 240/20 = 12 hours Time taken to cover remaining distance = 20 – 12 = 8 hours So, required speed = {(560 – 240)/8} = 40 km/h
If ‘%’ means (÷), ‘&’ means (+), ‘$’ means (×), and ‘@’ means (-), then what is the value of the expression:
25 & 35 % 7 @ 14 $...
Select the correct combination of mathematical signs that can sequentially replace the ‘*’ signs and balance the given equation.
16 * 5 * 35 ...
Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation.
65 * 45 * 25 * 5 * 35 * 60
Out of the total number of players, 100/3 % are in hotel X and the remaining are in hotel Y. If 20 players from hotel Y are shifted to hotel X, then the...
Which two signs should be interchanged to make the given equation correct?
8 – 42 + 15 × 20 ÷ 4 = 346
If the following interchanges are made in signs, then what would be the value of the following expression?
48 X 63 + 2 ÷ 9 - 35
Interch...
Select the correct combination of mathematical signs that can sequentially replace '*' sign and balance the equation given below.
12* 6 * 3 * 54 * 9 * 12
Which of the following mathematical operator are placed in place of alphabet given in the equation to make it true?
54 a 7 c 9 f 45 h 12 j 15
...Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation.
30 * 4 * 2 * 1 * 121
Select the correct combination of mathematical signs that can sequentially replace the '$' signs and balance the given equation.
6 $ 42 $ 14 $ 6 $ 40 = -16
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