Select the number that will come in the place of the question mark (?), if ‘+’ and ‘-’ are interchanged and ‘x’ and ‘÷’ are interchanged. 11 × 8 ÷ 5 + 30 − 50 = ?
27
When we interchange '+' and '-' and 'x' and '÷', the equation becomes: 11 ÷ 8 × 5 − 30 + 50. Solving this, we get:
11 ÷ 8 = 1.375
1.375 × 5 = 6.875
6.875 − 30 = -23.125
-23.125 + 50 = 26.875
The correct answer is 27.
Similar Questions
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Important Questions from Arithmetical Reasoning
At present, the ratio between the ages of Arun and Deepak is 4:3. After 6 years, Arun's age will be 26 years. What is the age of Deepak at present?
A man is engaged for planting trees for 10 hours. He plants 10 trees in an hour. He takes rest for 30 minutes after every hour. How many trees does he plant in 10 hours?
- Ram leaves his house at 20 mins to seven in the morning, reaches Kunal's house in 25 mins. They finish their breakfast in another 15 mins and leave for their office which takes another 35 minutes. At what time do they leave Kunal's house to reach their office?
What will come in the place of ‘?’ in the following equation, if ‘+’ and ‘–’ are interchanged and ‘×’ and ‘÷’ are interchanged?
4 – 5 + 9 ÷ 6 × 2 = ?
Which two signs should be interchanged to make the following equation correct?
139 + 40 ÷ 5 - 168 × 3 = 283
