Explanation

Direct speech of "I told him that he was not working hard." is:

"I said to him, 'You are not working hard.'"

"He was" in indirect becomes "You are" in direct.

Explanation

Let's evaluate each option:

1. sin² 60⁰ + cos² 60⁰ = 1

sin 60⁰ = √3/2, cos 60⁰ = 1/2

(√3/2)² + (1/2)² = 3/4 + 1/4 = 1

2. sin² 45⁰ + cos² 45⁰ = 1

sin 45⁰ = cos 45⁰ = 1/√2

(1/√2)² + (1/√2)² = 1/2 + 1/2 = 1

3. sin² 45⁰ − cos² 45⁰ = 0

(1/√2)² - (1/√2)² = 1/2 - 1/2 = 0

Explanation

120 × 0.3 = 36

Explanation

Let's calculate D:

D = 1 * 10 * 100 = 1000

Now, calculate each term:

D/8 = 1000 / 8 = 125

D/5 = 1000 / 5 = 200

D/4 = 1000 / 4 = 250

D/2 = 1000 / 2 = 500

Sum = 125 + 200 + 250 + 500 = 1075

The sum of the digits of 1075:

1 + 0 + 7 + 5 = 13

Explanation

The union of two sets A and B, denoted as A ∪ B, is the set of all elements that are in A, in B, or in both.

A = {𝑐, 𝑑, 𝑏, ℎ} and B = {𝑚, 𝑝, 𝑓, ℎ}

A ∪ B = {𝑐, 𝑑, 𝑏, ℎ, 𝑚, 𝑝, 𝑓}

Explanation

Cholesterol is a vital precursor in the biosynthesis of:

Vitamin D:

• Cholesterol converts to 7-dehydrocholesterol in the skin, which forms vitamin D₃ under UV light.

Steroid Hormones:

Cholesterol is the backbone for:

• Sex hormones (testosterone, estrogen, progesterone).
• Adrenal hormones (cortisol, aldosterone).

Explanation

To express 49/5 as a mixed fraction:

49 ÷ 5 = 9 remainder 4

So, 49/5 = 9 4/5

Explanation

Let's say the number is x. Its reciprocal is 1/x.

x ÷ 1/x = x * x = x²

The answer is square of a number.

Explanation

Supercede means منسوخ کرنا

Explanation

Given the profit-sharing ratio:

Zubair : Kashif : Aijaz = 2 : 3 : 4

Kashif's share = Rs. 450

Let's find the value of one part of the ratio:

3 parts = Rs. 450

1 part = Rs. 450 / 3 = Rs. 150

Zubair's share = 2 parts

= 2 * Rs. 150

= Rs. 300