Let the distance travelled by a man be D km According to the question, Total time taken = 2 hrs 40 min = 2(40/60) = 8/3 hours Total time = T1 + T2 D/20 + D/12 = 8/3 (3D + 5D)/60 = 8/3 8D/60 = 8/3 D = 20 km
How far is point X from point Y?
In the venn diagram given below, how many cricketers are not artist?
A sum of Rs. 4,000 becomes Rs. 6,912 in 3 years at a certain rate of interest compounded annually. What is the rate of interest?
OCR stands for:
Which of the following may be the code for ‘lessons War’?
There are five magazine M, N, O, P, and Q. Magazine O lies above P, magazine Q is below M, P is above M and N is below Q. Which magazine is at the bottom?
Four of the following five are alike in a certain way and hence form a group. Find the one who doesn’t belong to that group.