Let the distance and time taken by boy to reach his destination if he travels at his usual speed be 'D' metres and 'T' seconds, respectively. Using, distance = speed X time 'D' = 20 X (T + 20) ------ (I) And, 'D' = 40 X (T - 10) --------- (II) From equations (I) and (II) , We have; 20 X (T + 20) = 40 X (T - 10) Or, T + 20 = 2T - 20 Or, 'T' = 40 On putting 'T' = 40 in equation (I) , We have, 'D' = 20 X (40 + 20) = 1,200 metres = 1.2 km
Select the number that is different from the other three.
Which of the following numbers will replace the question mark (?) in the given series?
4, 11, 19, 31, 52, 89, ?
In a certain code language, if CRACK is written in TEZME, how will AMUCK be written in the same code language?
Town Q is to the north of Town P. Town R is to the west of Town Q. Town S is to the north of Town R. Town T is to the east of Town S. What is the positi...
Statements:
Some bricks are metals.
All metals are shiny.
No shiny thing can float.
Conclusions:
(I) Some metals ...
Select the option that is related to the sixth number in the same way as the first number is related to the second number and the third number is relate...
Read the given statements, labeled Assertion (A) and Reason (R), and select the most appropriate option with respect to them
Statements:
<...Select the option figure which is embedded in the given figure (Rotation is NOT allowed).
Select the option in which the given figure is embedded (rotation is not allowed).
