Question
A boat goes 24 km downstream in 2 hours and comes back
the same distance upstream in 3 hours. Find the speed of the boat in still water.Solution
Downstream speed = 24 / 2 = 12 km/h Upstream speed = 24 / 3 = 8 km/h Let boat speed in still water = b, stream speed = s. b + s = 12 b − s = 8 Add: 2b = 20 → b = 10 km/h Then 10 + s = 12 → s = 2 km/h Answer: Boat speed = 10 km/h
Select the correct option that indicates the arrangement of the following words in a logical and meaningful order.
1. milli
2. nano
statement : Q > R ≥ S = V = Y > H < N
conclusion :
I. Q < S
II. Y < R
What should come in place of the question mark (?) in the given series based on the English alphabetical order?
WKG UHC SEY QBU OYQ ?
What will come in the place of ‘?’ in the following equation, if ‘+’ and ‘–‘ are interchanged and ‘×’ and ‘÷’ are interchanged?<...
Statement: H
F ≥ U = M conclusion:
i) M> I
ii) P>
iii) H
Select the option that is related to the fifth number in the same way as the second number is related to the first number and the fourth number is rela...
In the following equation, which of the two signs will be interchanged to get the correct equation?
119 - 21 ÷ 7 + 117 × 3 = 11
Four of the following five are somehow similar and therefore create a group. Which of these is not related to this group?
Wander, Saunter, Roam, ...
Arrange the given words in the sequence in which they occur in the dictionary.
1. Telephone
2. Teleworker
3. Tendency
4.Temp...
A is the brother of B. B is the son of C. C is married to D. E is the daughter of D. E is married to F. How is A related to F?
Relevant for Exams:
