Question
A covers 'x' meters in 8 seconds, while B covers (x +
200) meters in 15 seconds. Also, B takes 10 seconds to cover 'x' meters. How long will it take A to cover (x + 600) meters?Solution
ATQ, Given: A covers x meters in 8 sec → A_speed = x / 8 B covers x + 200 meters in 15 sec → B_speed = (x + 200) / 15 B also covers x meters in 10 sec → B_speed = x / 10 Equate B’s speeds = (x + 200) / 15 = x / 10 Multiply both sides by 30: 2(x + 200) = 3x 2x + 400 = 3x 400 = x To Find A’s speed A_speed = x / 8 = 400 / 8 = 50 m/s Find time for A to cover (x + 600) meters Distance = x + 600 = 400 + 600 = 1000 meters Time = Distance / Speed = 1000 / 50 = 20 seconds
Select the alphanumeric group from the given options which can replace the question mark (?) in the following series.Â
ZX1121, VT1242, RP1363, ?
Change the question mark with the option that follows the applied logic in the first pair.Â
Eating : Restaurant :: Exercise : ??
Question Figure:
Statements: Some chargers are metal. All metal are hard. Some hard are stools.
Conclusion I: All chargers are metal.
Conclusion II: Some stools are hard.
F is the brother of J. E is the sister of D. K is the sister of L. D is the son of L. J is the father of E. How is D related to F?
Take the given statements as true, disregarding commonly known facts, and decide which of the conclusion(s) logically follow(s) from the statements.
...How many triangles are there in the given figure?
Arrange the given words in the sequence in which they occur in the dictionary.
1. Â DAKOTA
2. Â DAMAGE
3. Â DARKLE
4. ...
A ladder is resting on the ground with the top end in contact with the top of a wall of a height of 12 metres. If the length of the ladder is 13 metres,...
Identify the figure in the options that when put in place of the question mark (?) will logically complete the series?
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