✨Mohit is m years old. His sister is 3 times as old as he is. His brother is 4 years younger than his sister.
a) Find his sister's age in terms of m.
b) Find his brother's age in terms of m.
c) If m=5, how old is his brother?
a) Find his sister's age in terms of m.
b) Find his brother's age in terms of m.
c) If m=5, how old is his brother?
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(b). 3m-4
(C).11 yrs. old
Step-by-step explanation: since mohit is m years old.
(a). his sister being three times as old as him i.e.,
Age of his sister = 3×(age of mohit) = 3×m = 3m
(b). Also his brother is four years younger than his sister.
Then,
Age of his brother = Age of his sister - 4
= 3m - 4 ........(1)
(c). If m= 5, putting value of m in equation (1)
Age of his brother = 3m - 4
= 3 × 5 - 4 = 15-4 = 11
Hence,we get the respective answers.
Answer:
Step-by-step explanation: