Question
The value of a washing machine depreciates by 10% every
year. The current price of the washing machine is ₹9477. What was the price of the machine three years ago?Solution
Let the price of a washing machine three years ago be Rs. Is. According to Question, X × (1-10/100)3 =9477 X × (9/10)3 =9477 X ×729/1000 =9477 X=13000.
64, 66, 69, 74, 81, ?
What value should come in the place of (?) in the following number series?
15, 21, ?, 41.16, 57.624
2.5 1.25 1.25 1.875 3.75 ?
...What will come in place of the question mark (?) in the following number series?
17, 28, 48, ?, 123, 182
43 86 258 ? 5160 30960
...What will come in place of the question mark (?) in the following series?
4000, ?, 320, 192, 153.6, 153.6
- What will come in place of the question mark (?) in the following series?
10, 17, 26, 37, 50, ? Find the missing character.
195% of 1420 + 72 × 25 =?
5 6 14 45 ? 925
...