Question
The speed of the stream is 15 km/h. Boat βAβ covers
140 km distance against the stream in 4 hours and boat βBβ covers 105 km distance against the stream in 5 hours. The speed of boat βBβ in still water is how much percent of the speed of boat βAβ in still water?Solution
Speed of boat βAβ upstream = 140/4 = 35 km/h Speed of boat βBβ upstream = 105/5 = 21 km/h Speed of the boat βAβ in still water = 35 + 15 = 50 km/h Speed of the boat βBβ in still water = 21 + 15 = 36 km/h Required percentage = (36/50) Γ 100 = 72%
Ramesh ranked 16th from the top and 21 from the bottom in his class in an examination. If only 21 students passed the exam, how many students in his cla...
Six persons H, X, E, J, L and K stand in a queue according to their heights. Not more than two persons are shorter than K. L is taller than E, who is t...
Six persons - Priyanka, Pari, Pooja, Pinky, Paro, and Priya, stand in a line in decreasing order of their height from left to right. Only two persons ar...
Seven persons, M, N, O, P, Q, R and S are of different weights. Only Q is lighter than O. P is heavier than M. R is heavier than N. P is not heavier tha...
All 140 students in a class are standing in a row facing towards the north direction. Aryan is 33 rd from the right end and Priya is 23th fro...
In a row of some students Rahim is 15th from one end and 47th from the other end. What is the total number of students in the group?
Answer the following questions based on the information given below.
Seven persons T, U, V, W, X, Y and Z has different weights. T is heavier t...
Sβs weight is more than the weight of U and S has the second highest weight. W weighs more than S. T weighs more than V. Who is the third heaviest ifοΏ½...
N is the grandmother of _____.
Six people F, G, H, I, J, K have different weight. F is heavier than two people. G is lighter than F. J is heavier than F. H is lighter than J but heavi...
