Question

8) A man's present age is eight times II
What are their present ages?
9) Sonu is 22 years older than Asha. In twenty years, he will be twice her age. What are their present ages?
10) Arun has 500 with him in 10 and 75 notes. He has three times as many 35 notes as he has 10 notes
How much of each denomination does he have?
totalling 26 in all. If the number of apples is 8 more than twice the​

Answer 1

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Answer 2

Step-by-step explanation:

1. Let x be the age of the son one year ago, then the age of the man was 8x.

• The present age of the son is (x+1) and that of the man is (8x+1). Then,
• 8x+1=(x+1)2
• 8x+1=x2+1+2x
• x=0,6
• As the age cannot be 0, so the value of x is 6.
• So, present age of son =(x+1)=7 years
• and Present age of man =(8x+1)=48 years

2. Sonu is 22 years older to Asha

To Find:

• After 20 years he will be twice her age what are their present age
• Solution:
• Let the present age of Asha be x
• We are given that Sonu is 22 years older to Asha
• So, Sonu's age = x+22
• Asha' age after 20 years = x+20
• Sonu's age after 20 years = x+22+20=x+42
• We are given that he will be twice her age
• x+42=2(x+20)
• x+42=2x+40
• 2=x
• Asha's present age = 2 years
• Sonu's age = x+22 = 2+22=24 years
• Hence Asha's present age is 2 years and Sonu's age.