Question
Divide Rs 2,760 in to two parts such that when these are
invested for 2 and 4 years, respectively, at the rate of 5% per annum simple interest, the amounts received are equal. What is the second part (in Rs) invested?Solution
Let for the 1st part it is Rs. x So, 2nd part = Rs. (2760 - x) According to the question, x + [(x × 2 × 5)/100] = (2760 - x) + [{(2760 - x) × 4 × 5}/100] ⇒ (100x + 10x)/100 = (276000 - 100x + 55200 - 20x)/100 ⇒ 110x = 331200 - 120x ⇒ 230x = 331200 ⇒ x = 331200/230 ⇒ x = 1440 So, 1st part = Rs. 1440 So, 2nd part = 2760 - 1440 ⇒ Rs. 1320 ∴ The second part (in Rs.) invested is 1320.
1519.98 ÷ 50.48 × 15.12 = ? × 4.16
Solve the following expression and calculate the approximate value.
14.96% of 120.03 - 107.99 + 88.93% of 199.87 = ?
- 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.)
Find the approximate value of Question mark(?). There is no requirement to find the exact value.
? = 599.77 – 14.08 × 20.11 + (12.93)²
(124.99)² = ?
(29.97%) of 9840 + ? + (45.17% of 1240) = (31.99% of 11750)
10.10% of 999.99 + 14.14 × 21.21 - 250.25 = ?
(29.98% of 9840) + ? + (19.899% of 8490) = 7560
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