Question
A shopkeeper sells two articles for Rs.3000 each. On
one, he gains 25%, and on the other, he loses 20%. What is the overall percentage gain or loss?Solution
Let the cost price of the first article be x. Selling price = x + 25% of x = 1.25x So, 1.25x = 3000 x = 3000/1.25 = Rs.2400 Let the cost price of the second article be y. Selling price = y - 20% of y = 0.8y So, 0.8y = 3000 y = 3000/0.8 = Rs.3750 Total cost price = 2400 + 3750 = Rs.6150 Total selling price = 3000 + 3000 = Rs.6000 Loss = 6150 - 6000 = Rs.150 Percentage loss = (150/6150) × 100 = 2.44%
- What will come in the place of question mark (?) in the given expression?
(160 - 64) ÷ 24 X 50 = ?² + 31 40 of 30% of 220 = ? + 790
12% of 152 + 12% of 150 = ? of 5
What value should come in the place of (?) in the following questions?
80/ √? + 19²/ √? = ?(3/2)
25% of 300 + √(?) = 35% of 600 - 15% of 300
280 ÷ 14 + 11 × 12 – 15 × 6 = ?
7.4 × 8.2 + 3.5 × 4.5 = ? + 11.5 × 2.5
(288 ÷ 12 + 15 × 5 + 124) = ?
- Find the simplified value of the given expression.

30% of 600 –