In a fixed time, a boy swims thrice the distance along the current that he swims against the current. If the speed of the current is 11 km/hr, the speed of the boy in still water is

Let the rate of swimming in still water be x km/hr Rate down-stream = (x + 11) km/hr Rate up-stream = (x – 11) km/hr According to the question, (x + 11) t = 3 (x – 11) × t x + 11 = 3x – 33 x = 22 km/hr

In the series _b_a_ba_b_abab_aab; fill in the six blanks (_) using one of the following given four choices such that the series follows a specific order.

There are three points P, Q and R on a straight line such that PQ: QR = 3 : 5. If n is the number of possible values of PQ : PR, then what is n equal to ?

In a code language MATHEMATICS' is written as 'LBSIDNZUHDR'. How is CHEMISTRY' written in that code language?

Consider the following statements :

1. The sum of 5 consecutive integers can be 100.

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