Simple Equations
Question: The sum of the digits of a two-digit number is 12. The difference of the digits is 6. Find the number?
- 1. 93
- 2. 39
- 3. 75
- 4. Either (a) or (b)
Question: 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?
- 1. 1
- 2. 2
- 3. 3
- 4. 4
Question: Solve the equation for x : 6x – 27 + 3x = 4 + 9 – x?
- 1. 4
- 2. 5
- 3. 6
- 4. -4
Question: Solve the equation for x : 19(x + y) + 17 = 19(-x + y) – 21:
- 1. -1
- 2. -2
- 3. -3
- 4. -4
Question: 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__________?
- 1. Rs.70
- 2. Rs.75
- 3. Rs.50
- 4. None of these
Question: The denominator of a fraction is 1 less than twice the numerator. If the numerator and denominator are both increased by 1, the fraction becomes 3/5. Find the fraction?
- 1. 2/3
- 2. 3/5
- 3. 4/7
- 4. 5/9
Question: The cost of 10 kg of apples is equal to the cost of 24 kg of rice. The cost of 6 kg of flour equals the cost of 2 kg of rice. The cost of each kg of flour is Rs.20.50. Find the total cost of 4 kg of apples, 3 kg of rice and 5 kg of flour?
- 1. Rs.849.40
- 2. Rs.877.40
- 3. Rs.901.60
- 4. Rs.815.20