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Answers & Comments
Aashish2503
Ans 11) Let Baichungs father's present age be x years Given Baichungs father is 29 years older than Baichung Hence Baichungs age is (x − 29) years Baichungs grandfather is 26 years older than Baichungs father. Hence Baichungs grandfathers age = (x + 26) years Given sum of three ages = 135 years ∴ x + (x − 29) +(x + 26) = 135 3x − 3 = 135 3x = 135 + 3 = 138 ∴ x = 46 Baichungs fathers age = 46 years Baichungs grandfathers age = (x + 26) = (46 + 26) = 72 years Baichung's age = (x − 29) = (46 − 29) = 17 years
Ans 12) Let Ravi s present age be X years.
Ravi s Age after 15 Years be : (X+15) Years
his age after 15 years will be four times his present age.
Answers & Comments
Let Baichungs father's present age be x years
Given Baichungs father is 29 years older than Baichung
Hence Baichungs age is (x − 29) years
Baichungs grandfather is 26 years older than Baichungs father.
Hence Baichungs grandfathers age = (x + 26) years
Given sum of three ages = 135 years
∴ x + (x − 29) +(x + 26) = 135
3x − 3 = 135
3x = 135 + 3 = 138
∴ x = 46
Baichungs fathers age = 46 years
Baichungs grandfathers age = (x + 26) = (46 + 26) = 72 years
Baichung's age = (x − 29) = (46 − 29) = 17 years
Ans 12)
Let Ravi s present age be X years.
Ravi s Age after 15 Years be : (X+15) Years
his age after 15 years will be four times his present age.
4X = (X+15)
4X - X = 15
3X = 15
X = (15/3)
X = 5.
Hence Ravi s Present age is 5 Years.