Answer:
Step-by-step explanation:
9+7+2=18
But since there are only 12 people in the class, its overlapping. So 18-2(the people that have nether), is 16.
So 16-12 is 4. Therefore 4 people have both a brother and a sister.
Answer:
Option b
Step-by-step explanation:
According to the property of rhombus at Centre it have 90°
So,





Hope this helps u ^_^
Answer:
Step-by-step explanation:
<u>Column 2 = Column 1 * Column 3</u>
- C = 5*7 = 35
- D = 10*7 = 70
Multiplying by 2 and then adding 10 145*2=290+10=300
300*2=600+10=610
610*2=1220 + 10=1230
x=2 y=10
x+y=12
12 in = 1 ft
so 1 ft :12 in = 2 ft