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Let the bill after 30% discount be Rs x According to the question, (x ×118)/100 = 4,743 – 200 ⇒ (x ×118)/100 = 4,543 ⇒ x = (4,543 ×100)/118 = Rs 3,850 ∴ Service charge = (3850 × 8)/100 = Rs 308 Alternate Method: Let total amount = 100 Amount after discount = 100 – 30 = 70 Service tax = 70 × (10/100) = 7 Service charge = 70 × (8/100) = 5.6 Total = 70 + 7 + 5.6 = 82.6 Shubham paid = 4743 - 200 = 4543 Now, 82.6 ----- 4543 Then, 5.6 = (4543/82.6) × 5.6 = Rs. 308
Direction: Find the wrong number in given number series.
214, 230, 294, 550, 1574 , 5470.
16, 27, 44, 63, 98, 139
40, 60, 120, 300, 600, 3150
15, 42, 56, 183, 219, 562
1990,1877, 1794, 1711, 1638
1600, 1604, 1544, 1760, 1248, 2248, 520
231, 241, 233, 239, 235, 243
24, 34, 46, 76, 100, 140