Question
Speed of a car and a bus is 30 km/h and 18 km/h,
respectively. If the time taken by the car to cover a distance of ‘8x’ km is 1 hour less than time taken by the bus to cover a distance of ‘6x’ km, then find the value of ‘8x’.Solution
According to the question, (6x/18) – (8x/30) = 1 Or, (6x × 5 – 8x × 3) ÷ 90 = 1 Or, (30x – 24x) ÷ 90 = 1 So, x = 15 Required value = 8 × 15 = 120
The following numbers form a series followed by a (?). Find the odd one out first and then find that what will come in place of the question mark (?) ac...
210Â Â Â Â 211Â Â Â Â Â 207Â Â Â Â 223Â Â Â Â Â 159Â Â Â Â Â ?
...35Â Â Â Â Â Â Â Â Â Â 36Â Â Â Â Â Â Â Â Â Â 40Â Â Â Â Â Â Â Â Â Â 49Â Â Â Â Â Â Â Â Â Â 65Â Â Â Â Â Â Â Â Â Â ?
...32, 8, 4, ?, 3, 3.75
512   493   476   ?    448    437  . Â
21, 22, 48, 153, 628, ?
7, 8, 12, 21, 37, ?
?     190      210      238      274     318
...2Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 5Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 10Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â ...
70    191    47    216    ?    245
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