(a) Rekha is 3 times as old as her sister. If the sum of their ages is 48,how old is Rekha’s sister?
Answers
Answered by
0
Answer:
16
Step-by-step explanation:
BECAUSE 16×3=48
SO ANSWER IS 16
Answered by
0
Answer:
42.6 years
Step-by-step explanation:
Let Rekha's sister's age be y and Rekha's x
3x= y ( Solving using simultaneous linear equations)
x+y = 48
3x= y
=>x = y/8
Substituting x in x+y = 48
y/8 +y = 48
=> y/8 +8y/8 = 48
=> 9y/8 = 48
=> 9y = 48*8
=> y = 384/9
= 42.6
Similar questions