Question
Because of a 10% rise in mobile data prices, Ayesha decided
to use 15% less data. Find out the percentage change in her data expenses.Solution
ATQ,
Let initial data price be Rs. 100a and data usage be 100b GB
Initial expenditure = 100a × 100b = Rs. 10000ab
New expenditure = (1.10 × 100a) × (0.85 × 100b) = Rs. 9350ab
Required percent = [(9350ab - 10000ab) ÷ 10000ab] × 100 = -6.5% decrease
More Percentage Questions
(23 × 8) – (13 × 5) + 67 =? x 6         Â
-Constable/1722079503-25.JPG)
(190/38) × (55/5) + (306/18) = ?
24% of 400 × 16% of ? = 384
140% of 75 + 152 - 160 = ?
(2500 ÷ √625) × √(42.25) = ? ÷ 4
What will come in the place of question mark (?) in the given expression?Â
(240% of 175 ÷ √16) X 6 + 80% of 400 = ?3 + 179 + 42
Evaluate:
7.5 + 12 ÷ (4 × 1.5) − 2.4
?2 - (40% of 240) = 25 X 5
- What will come in the place of question mark (?) in the given expression?
32% of 74% of ? = 16% of 37% of 180
