Question
A motor boat covers a certain distance downstream in a
river in 3 hours and 30 minutes. It covers the same distance upstream in 4 hours. If the speed of water is 3 km/h, then the speed of the boat in still water is:Solution
Let the speed of boat in still water be x km/hr and the distance be y km. Rate downstream = (x + 3) km/hr Rate upstream = (x – 3) km/hr According to the question, y/(x + 3) = 7/2 --- (i) y/(x – 3) = 4 --- (ii) On dividing equation (i) by (ii), (x – 3)/(x + 3) = (7/2)/4 = 7/8 8x – 24 = 7x + 21 x = 21 + 24 = 45 kmph
‘EXPLAIN’ is related to ‘YCGJLNV’ in the same way as ‘REQUEST’ is related to ‘___’.
Statement: M3 = N5 ≥ Q2 > R6 = W2 ≤ Z9
Conclusion:Â
I.M3 > R6
II.Z9 ≥ R6
If 44 # 55 = 41 and 88 # 77 = 113, then 68 # 99 = ?
Select the option in which the numbers are related in the same way as are the numbers of the following set.
(15, 165, 12)
Select the option that is related to the third number in the same way as the second number is related to the first number.
16: 208 :: 25: ?
- Which of the following will best complete the relationship given below?
HOUSE: 27 :: POWER:? :: MAGIC: 22 Hill is related to mountain in the same way as
If '32 @ 5 = 7' and '46 @ 12 = 12', then '34 @ 18 = ?'. What will come in place of question mark?
Select the option that is related to fourth number in the same way as the first number is related to the second number and the fifth number is related t...
Statements: L > J > W = Z < H < V ≤ U; V > P > H ≥ C; I = V ≤ E
Conclusions:
I. I > W
II. U > Z
III. I ≤ E
...
