Question

7. The probability of a leap year having 53 Fridays is .....
​

Answer 1

Answer:

The probability of a leap year having 53 Fridays is true ....

Answer 2

Answer:

Given:

The area of a circular playground =A=22176m

2

.

To find out:

The cost of fencing the ground at the rate of Rs 50/m.

Solution:

The radius of the ground =r=

π

A

=

22

22176

×7

m=84 m.

∴ The circumference =C=2πr=2×

7

22

×84 m=528 m.

Now, the length of the fence = The length of the circumference.

∴ The cost of fencing the ground at the rate of Rs 50