It is written F + V = E + 2,
where F is the number of faces,
V the number of vertices
E the number of edges.
A cube, for example, has 6 faces, 8 vertices, and 12 edges and satisfies this formula.
Answer:
Let her monthly income be Rs x.
Savings = Rs 120
Expenditure = 90% of x=90100x=9x10
Savings = Total monthly salary − Expenditure = x−9x10=x10 = 120
x=10×120=1200
Thus, total monthly salary = Rs 1200
Copyright © 2024 EHUB.TIPS team's - All rights reserved.
Answers & Comments
Verified answer
It is written F + V = E + 2,
where F is the number of faces,
V the number of vertices
E the number of edges.
A cube, for example, has 6 faces, 8 vertices, and 12 edges and satisfies this formula.
Answer:
Let her monthly income be Rs x.
Savings = Rs 120
Expenditure = 90% of x=90100x=9x10
Savings = Total monthly salary − Expenditure = x−9x10=x10 = 120
x=10×120=1200
Thus, total monthly salary = Rs 1200