Explanation

The surface area of a sphere is given by the formula: 4πr².

Substituting r = 7 cm, we get 4 × 3.1416 × (7)² = 616 cm².

Explanation

To find the value of x^2, we need to square the value of x:

x^2 = (2)^2

= 2 × 2

= 4

So, the correct answer is: 4

Explanation

Let the principal be Rs. P. 
According to the question,
∴270.40=P(1+1004​)2 
⇒270.40=P(1+0.04)2
⇒P=1.04×1.04270.40​ = Rs. 250
Hence, the principal is Rs. 250.

Explanation

The innings in cricket is always plural so 3*12= 36 80-36= 44 so his previous average was 44.

Now after 12th innings his average is 44+3= 47

Explanation

Mean =  numbers of multiples/ sum of multiples of first five of 3

The average of the first five multiples of 3

= 3 + 6 +9 + 12 + 15 / 5

= 45/ 5

= 9

Explanation

1/0.02= 50

Explanation

SH24-8-2023

Explanation

• In binary notation, the decimal number 9 is represented as 1001.
• Here's the binary conversion:
• 9 = 1 × 2^3 + 0 × 2^2 + 0 × 2^1 + 1 × 2^0
• = 1 × 8 + 0 × 4 + 0 × 2 + 1 × 1
• = 8 + 0 + 0 + 1
• = 1001 (in binary)

Explanation

Assigning numerical values based on a pattern:

• B = 5, E = 6, A = 4, T = 2 → BEAT = 5642
• S = 6, W = 6, E = 9, E = 1, T = 2 → SWEET = 66912
• T = 9, E = 6, A = 1, S = 6, E = 2 → TEASE = 96162.

Explanation

The pattern of the series appears to be square numbers:

• 1 = 1^2
• 9 = 3^2
• 25 = 5^2
• 49 = 7^2
• 81 = 9^2
• 121 = 11^2

So, the correct completion of the series would be:

1, 9, 25, 49, 81, 121