Question
The cost of fencing a rectangular field at the rate of Rs.
13/metre is Rs. 1560. The ratio of the length to the breadth is 7:5. Find the area of the field.Solution
Let the length and breadth be 7x metres and 5x metres respectively.
According to the question,
2 × (7x + 5x) = 1560 / 13
Or, 2 × 12x = 120
Or, 24x = 120
Or, x = 5 metres
Therefore, area = 7x × 5x = 35x² = 35 × 25 = 875 m²
49.96% of 861.34 + 2250% of 55.12 = ?
956.41 of 45.06% = ?
- 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.)
480 ÷ 10 + 18 % of 160 + ? * 9 = 60 * √36
(29.97%) of 9840 + ? + (45.17% of 1240) = (31.99% of 11750)
`sqrt(1297)` + 189.99 =?
1649.98 ÷ 15.48 × 8.12 = ? × 8.16
1959.09 + 33.94% of 6250.06 – ? = √10609.02 + √144.24
What approximate value will replace the question mark (?) in the following?
? =...
The interest received by investing Rs. 1200 for 2 years at compound interest of 20% p.a., compounded annually, was re-invested for 3 years at simple int...
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