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Let the speed one train be x m/s and the speed of the second train be y m/s. Length of the first train = Speed × Time = 28x Length of second train = Speed × Time = 16y So, {(28x + 16y)/(x+y)} = 24 ⇒ 28x + 16y = 24x + 24y ⇒ 4x = 8y Therefore, x:y = 2:1
A question is given, followed by three statements labelled I, II and III. Identify which of the statements is/are sufficient to answer the question.
...In the following number-pairs, the second number is obtained by applying certain mathematical operations to the first number. Select the set in which th...
Which of the following expression indicates that P is the son of R?
In this question two statements and the two conclusions related to them have been given in the form of i and ii, assuming that the statements given in t...
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance...
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at varianc...
Find the missing number in the given analogy:
144 : 1728 :: 169 : ?
Which of the following numbers will replace the question mark (?) in the given series?
473, 517, 561, ?, 649, 693
a) Either he is happy or he is poor.
b) He is happy.
Inference : He is poor.
Select the number from among the given options that can replace the question mark (?) in the following series. 85, 84, 92, 65, 129, ?
