Explanation

1/10 = 0.1

Explanation

10 men have ration for 21 days, which means the total ration is sufficient for 10 x 21 = 210 man-days.

If 3 men leave the camp, the remaining number of men is 10 - 3 = 7 men.

The total ration remains the same, but now it needs to be distributed among 7 men instead of 10.

To find the number of days the ration will last for the remaining men, divide the total ration (210 man-days) by the number of remaining men (7): 210 ÷ 7 = 30 days.

Therefore, the correct answer is: 30 days

Explanation

One megawatt (MW) is equal to 1,000 kilowatts (kW).

This is because the prefix "mega-" means "one million" or "10^6".

"Watt" is the unit of power.

1 megawatt (MW) = 1,000 kilowatts (kW)

1 kilowatt (kW) = 1,000 watts (W)

Explanation

The sum of 72 + 21 + 8 + 66 + 37 equals 204.

Explanation

• A man is standing upside down with his face towards the south.
• Normally, if a person stands upright facing south, their left hand points east and right hand points west.
• When flipped upside down, the directions of their hands do not change relative to their body.

Thus, the left hand will still point east

Explanation

The pattern of the sequence is doubling the previous term:

• 10 × 2 = 20
• 20 × 2 = 40
• 40 × 2 = 80
• 80 × 2 = 160

So, the next number in the sequence is 160.

Explanation

3900 divided by 500 equals 7.8.

Explanation

Goats have 4 legs each.

The total number of legs is 3004008.

To find the total number of goats, divide the total number of legs by 4:

3004008 ÷ 4 = 751002

So, the total number of goats is 751002.

Explanation

Area of the rectangular floor = Length x Width = 18 feet x 10 feet = 180 square feet

Since there are 9 square feet in a square yard, the area in square yards is:

180 square feet / 9 = 20 square yards

The cost of carpeting = Area x Rate = 20 square yards x x Rs/Sq Yard

So, the cost of carpeting is: 20x

Explanation

If 25% of a certain number is 1600, we can set up an equation:

25% of x = 1600

Convert the percentage to a decimal:

0.25x = 1600

Divide both sides by 0.25:

x = 1600 / 0.25

x = 6400

So, the certain number is 6400.

Now, we need to find 10% of 6400:

10% of 6400 = 0.10 x 6400 = 640