Question
A sold a mobile phone to B at a gain of 25% and B sold
it to Cat a loss of 10%. If C paid 5625 for it, how much did A pay (in) for the phone?Solution
Let, the A paid for the mobile phone = x So, x × (125/100) × (90/100) = 5625 ⇒ x = 5625 × (100/125) × (100/90) ⇒ x = 5000 ∴ A paid Rs. 5000 (in Rs.) for the phone
9 10 36 333 ? 132825
...840, 2520, 630, 3150, ?, 3675
What value should come in the place of (?) in the following number series?
64, 80, 104, ?, 176, 224
562, 628, 698, ?, 850
55   56    52   61    ?      70    34
...What will come in place of the question mark (?) in the following series?
168, 120, ?, 48, 24, 8
What will come in place of the question mark (?) in the following series?
4000, ?, 320, 192, 153.6, 153.6
13, 41, 69, ?, 125, 153Â
What value should come in the place of (?) in the following number series?
14, 18, ?, 43, 68, 104
18, 30, 46, 66, 90, ?
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