Question
A shopkeeper marks an item 50% above its cost price.
During a sale, he provides two successive discounts of 20% and 10%. Calculate the profit percentage.Solution
Let the Cost Price (CP) = ₹x. Marked Price (MP) = CP × 1.50 (since it's 50% above CP) = 1.5x Selling Price (SP) after two successive discounts of 20% and 10%: SP = 1.5x × (1 - 0.20) × (1 - 0.10) SP = 1.5×0.72x SP = 1.08x 
A sequence {Sₙ} is defined by:
Condition I: S₁ = 3 and for all n ≥ 2, Sₙ = 2·Sₙ₋₁ + (−1)ⁿ.
Condition II: The second ter...
27 44 63 86 ? 146
6 16 116 566 2272 6814
11 a�...
100, 110, ?, 171.6, 240.24, 360.36
31 16.5 18 �...
104 136 152 160 164 ?
...30 32 67 206 ? 4166
625, 5, 125, 25, 25, ? , 5
16 4 2 1.5 1 1.875
...130 155 146 195 186 ?
...
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