Explanation

63.3 is the correct answer

total number 15 ×64=960 24 was misread as 34 so actual no is 10 more so subtract 10 from 960 which is 960-10 = 950 now divide 950 by total number which is 15 950/15 = 63.33 is correct answer

Explanation

When an object is placed between the focus and centre of curvature, the concave mirror can form an image larger than the actual object.

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Concave Mirror used for:

1. Shaving mirrors.
2. Head mirrors.
3. Ophthalmoscope.
4. Astronomical telescopes.
5. Headlights.
6. Solar furnaces.

Explanation

Angular velocity is positive when the rotation is counter clockwise and negative when it is clockwise

Explanation

 Let's break down the problem step by step: Initially, the ratios of Mr. A and Mr. B's investments are not given, so let's assume they are A:B. According to the given information, both Mr. A and Mr. B receive a profit of Rs. 5000 each. The new ratio after the profit becomes 18:24. From the given information, we can create an equation based on the ratios and the profit: (A's initial investment) : (B's initial investment) = 18 : 24 (A's initial investment) / (B's initial investment) = 18 / 24 Now, let's represent A's initial investment as 18x and B's initial investment as 24x, where x is a common multiplier. After the profit, the new amounts for Mr. A and Mr. B would be: Mr. A's new amount = A's initial investment + Profit = 18x + Rs. 5000 Mr. B's new amount = B's initial investment + Profit = 24x + Rs. 5000 We are given that the new ratio is 18:24, so: (Mr. A's new amount) : (Mr. B's new amount) = 18 : 24 (18x + Rs. 5000) / (24x + Rs. 5000) = 18 / 24 Cross-multiplying: 18 * (24x + Rs. 5000) = 24 * (18x + Rs. 5000) 432x + 90000 = 432x + 120000 The x terms cancel out, which means that x doesn't affect the equation. This implies that the value of x is not relevant to the final result. Simplifying further: 90000 = 120000

Explanation

120 is the correct answer

2+3+4=9 3/9x360=120

2+3+4=9 3÷9=0.333..... 0.333....*360=120

Explanation

88.8% is the correct answer

Total workers present : 540-60= 480 Now for percentage =480/540×100 =0.888×100 =88.8

Explanation

Hypotenuse of a right triangle is always the side opposite the right angle. 

Hypotenuse is the longest side in a right triangle.

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Explanation

Cadmium rods are inserted in nuclear reacter to absorb the extra nucleons.

Cadmium has a high thermal neutron absorption cross section.

Therefore, cadmium rods will absorb neutrons, making them unavailable to cause fission.

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Explanation

Photon with energy greater than 1.02 MeV can interact with matter as Pair Production.

MeV stands for Mega electron-volt.

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Explanation

 288 years is the correct answer.

Sol 72×4 = 288