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9. Linear Equation in One Variable
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Q14 of 87 Page 9

I am currently 5 times as old as his son. In 6 years time I will be three times as old as he will be then. What are our ages now?

Let the present age of Son is years


Present age of father is years


Son’s age after 6 years = years


Father’s’s age after 6 years = years


According to the question:







Therefore present age of Son is years


Present age of father is years


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12

The ages of Sonu and Monu are in the ratio 7:5 Ten years hence, the ratio of their ages will be 9:7 find their present ages.

13

Five years ago a man was seven times as old as his son. Finve years hence, the father will be three times as old as his son. Find their present ges.

15

I have Rs 1000 in ten and five rupee notes. If the number of ten rupee notes that I have is ten more than the number of five rupee notes, how many notes do I have in each denomination?

16

At a party, colas, squash and frut juice were offered to guests. A fourth of the guests drank colas, a thirk squash, two fifths drank fruit juice and just three did not drink any thing. How many guests were in all?

Questions · 87
9. Linear Equation in One Variable
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