A sold a watch to B at a profit of 20%. B sold it to C at 30% profit. C sold it to D at 10% loss. If B's profit is ₹.80 more than that of A, then D bought it for:
Let A purchased at Rs. 100 ⇒ A sold to B at a 20% profit = 100 × (120/100) ⇒ A sold to B at a 20% profit = 120 ⇒ A's profit = 120 - 100 ⇒ A's profit = 20 ----(1) ⇒ B sold to C at a 30% profit = 120 × (130/100) ⇒ B sold to C at 30% profit = 156 ⇒ B's profit = 156 - 120 ⇒ B's profit = 36 ----(2) ⇒ C sold to D at a 10% loss = 156 × (90/100) ⇒ C sold to D at a 10% loss = 140.4 From (1) and (2) The difference in profit of B and A ⇒ B's profit - A's profit = 36 - 20 ⇒ B's profit - A's profit = 16 So. 16x = 80 ⇒ x = 5 ⇒ D bought it for 140.4 × 5 ∴ D bought it for Rs. 702
78.89 × 81.03 – (16.83)² + 8.33% of 9602.87 = ? – 50.23
1220 ÷ 61 ÷ 5 + 450 of 20% - 70 = √ ?
4261 + 8234 + 2913 + 8217 + 6283 + 4172 =?
25% of 400 + 3 × 102 = ?2
104 × 21 ÷ 13 + ? % of 300 = 320 + 22
1549.8 ÷ 8.2 + 65.6 × 55 = (? × 4) + (42 × 30.5)
√( (664+ √(136+ √(59+ √(21+ √(7+ √81) ) ) ) ) ) = ?
[4(1/3) + 4(1/4)] × 24 – 62 = ?2
(5/7) of (7/11) of (3/5) of 52% of 4400 = ? - (44)2 + (50)2 - (62% of 1750) - (188 ÷ 9.4)
756 + 432 – 361 + ? = 990