Question
A motor-cycle covers 130 km with a speed of 50 km/hr.
find the speed of the motor-cycle for the next 130 km journey so that the average speed of the whole journey will be 75 km/hr.Solution
Average speed of whole journey = 75 km/hr Using the formula, average speed = 2xy/(x + y)  x = speed of first 130 km = 50 km/hr 75 = 2 x (50 x y)/(50 + y) = 150 km/hr
DKNF is related to YFIA in a certain way based on the English alphabetical order. In the same way, QYCR is related to LTXM. To which of the following is...
Which number will replace the question mark (?) in the following series?
5, 13, 22, 40, 83, 175, 348,?
Which is the correct one to replace the question mark?
Question Figures
A statement is followed by two conclusions, numbered I and II. Find out which of the following conclusion(s) is/are true based on the given statements.<...
What should come in place of the question mark (?) in the given series based on the English alphabetical order?
YFD, VJA, SNX, PRU.?
Salman starts from his office and drives 29 km towards South. Then he turns right and drives 16 km, again he turns right and drives 29 km. Finally he tu...
What should come in place of the question mark (?) in the given series?
1201 1203 1207 1213 1221 ?
'A = B’ means ‘A is the mother of B’
‘A @ B’ means ‘A is the brother of B’
‘A % B’ means ‘A is the husband of B’
...Select the word-pair that best represents a similar relationship to the one expressed in the pair of words given below. (The words must be considered ...
If G > T, H < R, R < T, H = M, M > N, then which of the following conclusions will not be correct? Â
Relevant for Exams:
