Explanation

Let daughter's present age = x  

Then mother's present age = 4x

After 5 years:  

Daughter's age = x + 5  

Mother's age = 4x + 5 

Sum after 5 years = 60  

So, (x + 5) + (4x + 5) = 60  

x + 5 + 4x + 5 = 60  

5x + 10 = 60  

5x = 60 - 10  

5x = 50  

x = 10  

Daughter's present age = 10 years

Last verified on 11-07-2026

Explanation

Let the daughter's present age = x.

Father's present age = 3x

After 12 years:

Father's age = 3x + 12

Daughter's age = x + 12

According to the question:

3x + 12 = 2(x + 12)

3x + 12 = 2x + 24

x = 12

So, the daughter's present age is 12 years.

Last verified on 11-07-2026

Explanation

25*25 = 625

Last verified on 09-07-2026

Explanation

When 39 is divided by 4:

• 4 × 9 = 36, remainder = 39 − 36 = 3
• When 39 is divided by 9:
• 9 × 4 = 36, remainder = 39 − 36 = 3

So in both cases remainder is 3, which satisfies the condition.

Last verified on 24-06-2026

Explanation

Son's current age = 12 years  

Father is 30 years older than son

Father's current age = 12 + 30 = 42 years

5 years from now:  

Father's age = 42 + 5 = 47 years  

Son's age = 12 + 5 = 17 years

Check: 47 - 17 = 30 years difference.

Last verified on 10-06-2026