Question

Help me ans should be well explained ​

Answer 1

Question 31.

• Total number of pages in the book = 416

Question 32.

• Measure of the angle will be 60°

Question 33.

• Angle a = 65°

• Angle b = 55°

• Angle c = 60°

Question 34.

decrease in consumption :

• $\dfrac{y}{5}$

decrease percentage in consumption :

• $(\dfrac{y}{5} \div y) \times 100$

• $\dfrac{1}{5} \times 100$

• $20 \%$