Question
A and B are travelling towards each other with a speed
of 20 km/hr and 30 km/hr. They started at same time and A covered 30 km less distance than B before meeting B. Find the distance between them before starting.Solution
Here time taken by both A and B is same, so the ratio of the distance covered by them will be equal to the ratio of their speeds. Therefore, ratio of the distance covered by A and B = 20:30 = 2:3 Let the distance covered by A and B be 2x km and 3x km respectively. According to question, => 3x – 2x = 30 => x = 30 Therefore, distance between them before starting = 3x + 2x = 5x = 150 km
Given below are two numbers series 'I' and 'II' and each series has a wrong (odd one out) number. The number that should come in place of the wrong num...
1331      1000            729       512       ?             216
...7Â Â Â Â Â Â Â Â Â Â Â 26Â Â Â Â Â Â Â Â Â Â Â Â Â Â 238Â Â Â Â Â Â Â Â Â Â Â Â Â Â 962Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 8522Â Â Â Â Â Â Â Â Â Â Â Â Â ...
Direction: Which of the following will replace ‘?’ in the given question?
342, ‘?’, 420, 462, 506, 552, 60
7 12 33 ? 635 3804
...If 6 4 x 5.75 9,
Then, (x²-1) = ?
...6Â Â Â Â Â Â Â Â Â Â Â Â Â 7Â Â Â Â Â Â Â Â Â Â Â Â Â 15Â Â Â Â Â Â Â Â Â Â 46Â Â Â Â Â Â Â Â Â Â 185Â Â Â Â Â Â Â Â ?
...Identify the given logic and complete the series with the correct option. 12, 15, 18, 20,?
(45)2 ÷ ∛729 + (35)2 ÷ 1.4 =?
2187, 1458, 972, ?, 432, 288
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