Question
Pranav went to the bank at the speed of 60 km/h while
returning for his home he covered the half of the distance at the speed of 10 km/h, but suddenly he realised that he was getting late so he increased the speed and reached the home by covering rest half of the distance at the speed of 30 km/h. The average speed of the Pranav in the whole length of journey is?Solution
ATQ, we can say that Let the distance be 60 km. Time taken by Pranav from home to bank = 60/60 = 1 hour Time taken by Pranav to cover half distance between bank and home = 30/30 = 1 hour Time taken by Pranav to cover half distance between bank and home = 30/10 = 3 hours ∴ Average Speed = (60 + 30 + 30) / (1 + 1 + 3) = 120/5 = 24 km/hr
Select the figure from the given options that when put in place of the question mark (?) will logically complete the series.Â
Which two mathematical signs should be interchanged to make the given equation correct?
(75 + 15) × 27 × 1 – 9 ÷ 7 × (135 + 3) – 10 ÷ (1...
In a certain code language, ‘art of war’ is coded as ‘gb pr ml’ and ‘the lost art’ is coded as ‘ml sj ak’. How is ‘art’ coded in the...
Seven people A, B, C, D, E, F and G are sitting around a circular table, facing the centre (but not necessarily in the same order). B is sitting second ...
If + means −, − means ×, × means ÷, and ÷ means +, what will be the value of the following expression?
45 × 9 ÷ 12 – 5 + 3
...Suppose the first and the second letters of the English Alphabet exchange their places also third and the fourth and so on till the end. Then, if all vo...
Complete the sequence with the correct option from the following codes:
EGIK : FILO :: FHJL : ?Â
Seven persons A, C, G, K, M, S and Y are sitting around a round table facing its centre but not necessarily in the same order. A sits immediate right of...
In a certain code language, if ‘raghav plays hockey’ is written as ‘xfjdni rzzmo ubghzs’, then ‘arun works hard’ will be written as:
...
