The average age of three children in a family is 35% of the average of the age of father and the eldest child. The total age of the mother and the younger child is 43 years. If the father’s age is 32 years, what is the age of the second child?
We are here given by the average age of three children in a family is 35% of the average of of the father and the eldest child Therefore, let us suppose the age of the three children be a, b , c And the average would be = (a+b+c)/3 = 35/100×(28+c)/2 = (a+b+c)/3 = (32+c)/8……………..(i) Let us suppose that the age of mother is b, So given condition that the b + a = 43. But from this we cannot determined the value of b .
Amit scored 80 marks in subject X. He scored 60% marks in subject B and Y marks in subject D. Maximum marks in each subject was 300. The overall percent...
Rajesh spent 40% and 20% of his monthly salary on food and rent, respectively. Of the remaining amount, he gave 15% and 30% to his mother and brother, r...
Ram spent 25% of his monthly income on entertainment and 70% of the remaining on rent. If amount spent on rent is Rs. 2016, then find the amount ...
A man invested a certain amount of sum at 12.5% per annum simple interest and earned an interest of Rs.1800 after 2 years. If the same amount is investe...
A scored 38% marks and failed by 40 marks whereas B scored 68% marks, which was 50 more than the passing marks of the examination. Find the total marks ...
Income of Vipin is Rs.36000 and he saves 60% of his income. The expenditure of Sahil is Rs.2600 more than that of Vipin and he saves 66% of his income. ...
'M' and 'N' have a combined income of Rs. 1,80,000. 'M' spends 65% of his income, whereas 'N' spends 60% of her income, resulting in 'N's savings being ...
The ratio of the number of males and females in an apartment is 14:11. If 25% of the males and 25% of the females read newspapers out of 200 persons, t...
Heena decided to save 15% of her salary as fixed deposit. Later, she changed her mind and saved Rs 4800 which was 80% of what she had decided earlier. ...
Akshita and Monika started a business with initial investments of Rs. 2,400 and Rs. 2,500 respectively. After one year, Akshita withdrew ___% and Monika...
