Question
A mixture contains ‘x’% milk. 40% of this mixture is
taken out and is replaced with same quantity of water. This procedure is repeated two more times. If the resultant mixture contains 25.92% milk, then find the value of ‘x’.Solution
According to question, => 25.92 = x × (6/10) × (6/10) × (6/10) => x = 120
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230 192 172 ? 122 100
...What value should come in the place of (?) in the following number series?
64, 80, 104, ?, 176, 224
97, 106, ?, 195, 411, 460
What will come in place of the question mark (?) in the following series?
29, 42, ?, 95, 135, 184
Find the missing term:
2, 6, 15, 31, 56, ?
32   48   96   ?   720   2520
82, 98, 130, 178, 242, ?
4 10 ? 62.5 156.25 390.625
...140, 146, 170, 224, ?, 470
7 47 ? 223 359 527
...
