Explanation

• To solve (39 + 9) × 750:
• First, calculate 39 + 9 = 48.
• Then, multiply 48 × 750 = 36000.
• So, the answer is 36000.

Explanation

 According to the order of operations (PEMDAS/BODMAS), multiplication is done first.

So, 6 × 2 = 12,

9 + 12

= 21.

Explanation

Let's use the Power Rule first.

$f\left(x\right)=x=x^1$

$f\text{'}\left(x\right)=1x^{1-1}=1x^0=1\cdot 1=1$

Explanation

180 - 55 = 155

Explanation

13 × 2 = 26 - 2 = 24

24 × 2 = 48 - 2 = 46

46 × 2 = 92 - 2 = 90

90 × 2 = 180 - 2 = 178

Explanation

2+2/2*2-2

=4/2*2-2

=2*2-2

=4-2

=2

Explanation

Previous Salary: 25000

Current Salary: 27500

Difference = 27500 - 2500 = 2500

2500/25000 *100

Answer = 10%

Explanation

Explanation

Let's first find the cost of 1 gram:

Cost of 1/4 kg (250g) = Rs. 60

Cost of 1 gram = Rs. 60 / 250g = Rs. 0.24 per gram

Now, let's find the cost of 150g:

Cost of 150g = Rs. 0.24 per gram x 150g = Rs. 36

So, the correct answer is: 36

Explanation

In one hour, the minute hand covers 360∘ and the hour hand covers 30∘.

When the minute hand covers 180∘, the hour hand covers 15∘.

So at 6:30, the minute hand covers 180∘ , and the hour hand covers 195∘.

The angle included between the minute and hour hand at 6:30 is 15∘.