Question
Anshul lives on 19th floor and Keshav lives on 46th
floor. Anshul goes up at a rate of 24 floors per minute and Keshav comes down at a rate of 30 floors per minute. At which floor they will meet?Solution
Total floors between Anshul and Keshav = 46 – 19 = 27 floors Relative speed = 24 + 30 = 54 floor/min Time taken by them to meet = total floors/relative speed = 27/54 = 1/2 min Anshul travels in 1/2 min = 1/2 x 24 = 12 floors Floor at which Anshul and Keshav will meet = 19 + 12 = 31st floor
164, 160, 172, 136, 188, 128
120, 139, 196, 291, 420, 595
11 36 112 336 1011 3036
Find the wrong number in the given number series.
8, 9, 64, 25, 216, 49
Find the wrong number in the given number series.
22, 29, 50, 89, 134, 197
Find the wrong number in the given number series.
30, 46, 78, 126, 190, 278Find the wrong number in the given number series.
28, 40, 63, 98, 147, 224
In each of the following giving number series, a wrong number is given. Find out the wrong number?
3023, 3132, 3246, 3356, 3471
Find the wrong number in the given number series.
3, 6, 24, 120, 720, 5040
Find the wrong number in given number series.
14, 24, 63, 236, 1255, 6894.
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