Question : What is the value of a? If 15 + 18 ÷ 3 × 5 – 12 ÷ 4 + a = 100
Option 1: 54
Option 2: 58
Option 3: 48
Option 4: 42
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Correct Answer: 58
Solution : $15+18 \div 3 \times 5-12 \div 4+a=100$ ⇒ $15+6 \times 5-3+a=100$ ⇒ $15+30-3+a=100$ ⇒ $42+a=100$ $\therefore a=58$ hence, the correct answer is 58.
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Question : What is the value of $\frac{7 \text { of } 14 ÷ 4}{5 × 4 ÷ 2}+\frac{6 ÷ 12 × 3}{5 ÷ 25 × 2}+\frac{15 ÷ 5 × 6}{5× 15 ÷ 6}$?
Option 1: 7.44
Option 2: 7.64
Option 3: 7.62
Option 4: 7.22
Question : What is the value of $\frac{15 \div 5 \times 3-12 \times 12 \div 6+15 \div 5 \times 6}{18 \div 3 \times 5-12 \div 6 \times 5+18 \div 9 \times 5} ?$
Option 1: $\frac{1}{20}$
Option 2: $\frac{1}{5}$
Option 3: $\frac{1}{15}$
Option 4: $\frac{1}{10}$
Question : Directions: What will come in the place of the question mark (?) in the following equation if + and – are interchanged and × and ÷ are interchanged? 6 + 15 × 5 – 4 ÷ 3 = ?
Option 1: 12
Option 2: 21
Option 3: 18
Option 4: 15
Question : Directions: If ÷ means +, × means –, + means ÷, and – means ×, then 64 ÷ 13 + 65 – 15 × 48 + 8 = ?
Option 1: 63
Option 2: 49
Option 3: 57
Option 4: 61
Question : Directions: After interchanging the given two signs what will be the values of equations (I) and (II) respectively? × and + I. 5 × 12 – 15 + 20 ÷ 25 II. 36 + 3 × 2 – 15 ÷ 5
Option 1: 17 and 35
Option 2: 50 and 55
Option 3: 5 and 107
Option 4: 10 and 100
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