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Simple Equations - Data Intensity 1 Multiple Questions and Answers.
| 21. | The sum of the digits of a two-digit number is 12. The difference of the digits is 6. Find the number? | ||
| A. | 93 | ||
| B. | 39 | ||
| C. | 75 | ||
| D. | Either (a) or (b) | ||
| 22. | The tens digit of a two-digit number is two more than its unit digit. The two-digit number is 7 times the sum of the digits. Find the units digits? | ||
| A. | 1 | ||
| B. | 2 | ||
| C. | 3 | ||
| D. | 4 | ||
| 23. | Solve the equation for x : 6x – 27 + 3x = 4 + 9 – x | ||
| A. | 4 | ||
| B. | 5 | ||
| C. | 6 | ||
| D. | -4 | ||
| 24. | Solve the equation for x : 19(x + y) + 17 = 19(-x + y) – 21 | ||
| A. | -1 | ||
| B. | -2 | ||
| C. | -3 | ||
| D. | -4 | ||
| 25. | The cost of 2 chairs and 3 tables is Rs.1300. The cost of 3 chairs and 2 tables is Rs.1200. The cost of each table is more than that of each chair by____? | ||
| A. | Rs.70 | ||
| B. | Rs.75 | ||
| C. | Rs.50 | ||
| D. | None of these | ||
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