Question
Speed of a car and a bus is 18 km/h and 10 km/h,
respectively. If the time taken by the car to cover a distance of ‘20x’ km is 1 hour less than time taken by the bus to cover a distance of ‘12x’ km, then find the value of ‘20x’Solution
According to the question, (12x/10) – (20x/18) = 1 Or, (12x × 9 – 20x × 5) ÷ 90 = 1 Or, (108x – 100x) ÷ 90 = 1 So, x = 11.25 Required value = 20 × 11.25 = 225
22Â Â Â Â Â Â Â Â Â Â 62Â Â Â Â Â Â Â Â Â Â 178Â Â Â Â Â Â Â Â 522Â Â Â Â Â Â Â Â 1550Â Â Â Â Â Â ?
...3, 49, 191, 477, ?, 1673
3 15 35 63 99 ?
Complete the series.
19, 23, 26, 30, 33, ?
4, 8, 24, ?, 840, 9240
22 15 10 20 33 93.5
...12, 23, 68, 271, 1354, ?
3 5 15 75 1125 ?
...6   55   91   116   132    ?  . Â
12, 23, 68, 271, 1354, ?