Question
Four machines make a beep after every 1, 3, 5 and
2 min respectively . In 5hrs , how many times do they beep together if they have just beeped together.Solution
LCM of 1, 3, 5 and 2 = 30 That means after 30 min they will beep again together. 30 min = `30/60` hrs = `1/2` [endif]-->hrs Then number of beep in 5hrs =` (5xx2)/1` = 10 times
138, 140, 152, 174, ?, 248
9 28 83 250 ? 2248
What will come in place of (?) question mark in the given number series.
16, 24, 51, 115, 240, ?
14, 15, 24, 49, 98, 179, ?
What value should come in the place of (?) in the following number series?
71, 72, 76, 103, ?, 24424  12  18  ?  157.5  708.75  3,898.125
Which of the following number will replace the question mark (?) and complete the given number series?
4, 5, 12, 39, 160, ?
71, 79, 88, 152, ?, 393
43          86          258        ?             5160                     30960
...188    178    158   ?     88    38
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