Question
The difference between the present ages of a mother and
her son is 32 years. Six years ago, the mother was 4 years younger than twice the present age of her daughter. If the sum of the present ages of the son and the daughter is 34 years, find the present age of the father, who is 5 years older than the mother.Solution
ATQ, Let the present age of the daughter be 'z' years. Present age of the mother = '2z - 4' years Present age of the son = 'z - 32' years z + (z - 32) = 34 2z = 66 So, z = 33 years Therefore, present age of the father = Mother's age + 5 = (2z - 4) + 5 = (2 × 33) - 4 + 5 = 66 - 4 + 5 = 67 years.
Which of the following types of virus, also known as spacefiller virus,infects a file using empty sections?
A vendor buys a box of fruits for ₹720 and sells them at a 25% profit. If he sells 60% of the fruits, what will be his profit on this transaction?
887, ? , 818, 749, 657, 542.
120 litres of mixture contains water and milk in the ratio 5:6 respectively. If 32 litres of the mixture is replaced by same quantity of water, then fin...
55-litres of paint is added to a mixture of paint and oil in the ratio 3:5. The ratio of paint and oil in the resulting mixture is 4:3. Find the total v...
Determine the mean of the following observations:
24, 26, 22, 25, 20, 21, 24, 25Find the number of real solutions of sinx=x
'R' invested Rs. 24,000 in SIP 'A' with a compound interest rate of 20% per annum compounded annually, and Rs. 18,600 in SIP 'B' with a simple interest ...
- What does a landscape orientation refer to?
- What was the first successful supercomputer?