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Answers
Answer:
Step-by-step explanation:
present ages
let sunitha =x
sunitha's mother= 3x
after 7 years sunitha age= x+7
sunitha's mother age = 3x+7
their sum = 86 yrs
- x+7+3x+7=86
- 4x+14=86
- 4x=86-14=72
- x=72/4=18
present sunitha age=x=18yrs
sunitha's mother age=3x=3*18=54 yrs
Answer:
Q.no 20
Angle
1 = 130° = Angle 3 = 5and 7
2= 50° = Angle 4 = 6 and 8
Step-by-step explanation:
because angle 1 is same /parallel to angle 3
same for angle 2 and angel 4
as they from 180° so angle 1=130 2= x 1+2 = 180 so 180-130 = 50
and the angle 1 2 3 4 from 360° and the angle 5 6 7 8 are same so answer is given
they are same because.(read the question)
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Answer:
Q. no 19 .
shnita = 18 mother = 54
Step-by-step explanation:
q.no 19
let the age of sunita = a
her mother = 3×a (3a)
after 7 year = 7+a // 7+3a
sum of theirs present age is
7+a+7+3a = 86
4a+14 = 86
4a= 86-14
4a = 72
a = 72/4
a= 18
Sunita now age = 18
her mother = 18×3 = 54