Question
A refrigerator depreciates in value by 18% in the first
year and then 12% in the next year. If its price after 2 years is Rs. 25,872, what was its initial price?Solution
ATQ,
Net percentage change = –18% –12% + {[(–18%) × (–12%)]/100}%= –30% + 2.16% = –27.84%
Let present value be Rs. ‘x’
Then, 72.16% of x = 25872
Or, 0.7216 × x = 25872
Or, x = 25872 / 0.7216 = 35850
So, the initial price of the refrigerator = Rs. 35,850
80.08% of 1250.25 + 64.02% of 1200 = 24.02 × 36.025 + ?% of 2259.98
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
159.98% of 4820 + 90.33% of 2840 = ? + 114.99% of 1980
(13.156)2 + (3.945)2 + (5.903)3 = ?
- 27.99² - 40.02% of 419.99 + √3135.99 = ? X 5.99
Solve the following expression and calculate the approximate value.
24.66% of 8640.31 + (56.06 × 14.11) ÷ 8 = ?
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exactvalue.)
(13.13 × 32.98) + 20.15% of 649.99 = ? + 122.34
(25.032% of 48.05) X 9.32 + 43.125 X 3.125 - 29.67 =?