PLZ SOLVE
CLASS 8TH HALF YEARLY SAMPLE PAPER of MATHS
Answers
13.in the attachment.
14.Answer:
Quadrilateral PQRS constructed.
Step-by-step explanation:
First the base line PQ is drawn with a length of 4 cm then on P we have to make an angle of 75 degree and then extent the line. Again from Q we have to make the angle of 100 degree and extend the line till the distance of 4.8 cm and make the point R on it.
From R make the angle of 120 degree and the line of this angle is extended and cut with the line PS and the point S is made at the intersection. So, the quadrilateral PQRS is made.
15.P=A(r+1/100)^2
=12600(10+1/100)^2
=12600*110/100*10/100
=15246
CI =P-A
=15246-12600
=rs2646
16.in the aatachment
17.After discount price
= 500-5/100*500=500-25= 475
Now in 475 he get 25% profit
x + 25/100x= 475
x+1/4x=475
5/4x=475
x=475*4/5=380 = cost price of article
18.in the aatachment
Answer:
13.in the attachment.
14.Answer:
Quadrilateral PQRS constructed.
Step-by-step explanation:
First the base line PQ is drawn with a length of 4 cm then on P we have to make an angle of 75 degree and then extent the line. Again from Q we have to make the angle of 100 degree and extend the line till the distance of 4.8 cm and make the point R on it.
From R make the angle of 120 degree and the line of this angle is extended and cut with the line PS and the point S is made at the intersection. So, the quadrilateral PQRS is made.
15.P=A(r+1/100)^2
=12600(10+1/100)^2
=12600*110/100*10/100
=15246
CI =P-A
=15246-12600
=rs2646
16.in the aatachment
17.After discount price
= 500-5/100*500=500-25= 475
Now in 475 he get 25% profit
x + 25/100x= 475
x+1/4x=475
5/4x=475
x=475*4/5=380 = cost price of article