Question
If Ashish has 3 types of pens in a ratio 4 : 6 : 5 such
that their LCM is 360, then find the sum of the highest and lowest number of pens that he has?Solution
Let the number of pens be 4a, 6a and 5a Then, we have LCM of (4a, 6a, 5a) = a times; LCM(4, 6, 5) = 60a rArr; 60a = 360 rArr; a = 6 rArr; No. of pens are 24, 36, 30 there4; The sum is 36 + 24 = 60
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37, 49, 63, ?, 97, 117
28, 43, 73, 118, ?, 253
81, 83, 87, 95, 111, ?
97, 106, ?, 195, 411, 460
612, 487,?, 396, 388, 387
13 19 32 52 ? 113
What will come in place of the question mark (?) in the following number series?
180, 184, 168, 204, ?, 240
52   83   114   ?   176    207
143 Â Â Â Â 119Â Â Â Â 107Â Â Â Â 101Â Â Â Â Â 98Â Â Â Â ?
161Â Â Â Â 173Â Â Â Â Â Â 191 Â Â Â Â Â Â 215Â Â Â Â Â Â 245 Â Â Â Â Â Â ?
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