Question
Study the given pattern carefully and select the number
that can replace the question mark (?) in it. Â First row: 26, 312, 14 Second row: 55, 1705, 24 Third row: 37, ?, 18 Â (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13-Operations on 13 such as adding /deleting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed)Solution
The logic followed in the given series is: 1st term x (1st term – 3rd term) = 2nd term  First row: 26, 312, 14 26 x (26 – 14) = 312 26 x 12 = 312 312 = 312 Second row: 55, 1705, 24 55 x (55 – 24) = 1705 55 x 31 = 1705 1705 = 1705 Third row: 37, ?, 18 37 x (37 – 18) = ? 37 x 19 = ? ? = 703  Hence, the correct answer is (C).
Two boats A and B start towards each other from two places, 312 km apart. Speed of the boat A and B in still water are 14 km/h and 10 km/h respectively....
What is the difference between the mode and the meaning of the observations?
2,3,4, 5, 6, 7, 8, 12, 9, 12, 5, 12
A boat takes 7 hours to cover 245 km upstream and 9 hours to cover 477 km downstream. Find the time taken by the boat to cover 410 km upstream and 495 k...
- A launch covers 225 km in downstream in 5 hours. If the upstream speed is one-third of the downstream speed, find the time needed to travel 150 km upstream...
Speed of a boat in still water is 3 times more than the speed of stream. If boat covers 135 km in downstream in 9 hours, then find the time taken by the...
Speed of a boat in still water is 6 times more than the speed of stream. If boat covers 112 km in downstream in 8 hours, then find the time taken by the...
A boat takes 6 hours to travel 48 km upstream and 3 hours to travel 60 km downstream. What is the speed of the boat in still water?
A man can go on a motor boat with a speed of 15 km/hour in still water to a certain upstream point and come back to the starting point in a river which ...
A motorboat covers 48 km downstream and 30 km upstream in 6 hours. Under the same conditions, it covers 64 km downstream and 20 km upstream also in 6 ho...
The time taken by a boat to travel (5p + 60) km upstream is equal to the time taken to travel (8p - 40) km downstream. Given that...