Question
There are 5 children in a family. The average age of the
children is 10 years. If the present age of their mother and father is added, the average age of the whole family becomes 17 years. If the age of the father is 3 years more than that of the mother, find the present age of the mother.Solution
ATQ, Let the present age of the mother be x years. So, the present age of the father = x+3 years. Sum of the present age of the five children = 10×5=50 years. Sum of the present age of the whole family = 50+x+(x+3)=17×7. 2x+3=119−50 2x=66 x=33 Therefore, the present age of the mother = 33 years.
What is the code for “several significant”?
- In a certain code language, '7783' is coded as 'HHID' and '5438' is coded as 'FEDI'. How will '6147' be coded in that language?
In a certain code language, ‘FEED’ is written as ‘22’ and ‘MEAT’ is written as ‘41’. What will be the code for ‘NUTS’ in that code l...
What is the code for forgotten?
If all the alphabets of the word ‘DEDICATION’ are interchanged i.e. first and last, second and second last and so on, then which alphabet second to ...
If ‘DESPAIR’ is coded as ‘3’, ‘PROJECT’ is coded as ‘11’, then what is the code for ‘ORPHAN’ in the same code language?
...In a certain code language, ‘PLUMBER’ is written as ‘BELMPRU’. How will ‘SIGNAL’ be written in that language?
- In a certain code language, 'SUMMON' is written as '42' and 'MORE' is written as '24'. How will 'RURAL' be written in that language?
In a certain code language, ‘SAMPLING’ is written as ‘8’ and ‘GUEST’ is written as ‘5’. What will be the code for ‘MANPOWER’ in that...
which of the following will be the code of "Here"?