IBM Company Numerical Ability Time Distance and Speed

An F1 driver races a 4 laps at speeds of 270, 270, 290 and 280kmph. What is his average speed in the whole race?

Read Solution (Total 3)

(270+270+280+290)/4=277.5 kmph
10 years agoHelpfull: Yes(5) No(6)

(270+270+280+290)/4=275kmph
11 years agoHelpfull: Yes(0) No(8)
d+ d+ d+d/(d/270+d/270 +d/290 +d /280)
9 years agoHelpfull: Yes(0) No(0)

IBM Other Question

It was found that there were a total of 46 people at a company dinner. Each of the persons shook hands with all other paersons. What would be the total number of hand shakes? A square tin sheet is made into a cube by cutting a square each from all corners and then folding the sides up. If this cube can hold 1000 ml of water, what was the side of the original tin sheet?