Mathematics Problems | MCQs

Explanation

Cost of 15 toys = Rs. 234

Cost of 1 toy = Rs. 234 ÷ 15 = Rs. 15.60

Cost of 35 toys = Rs. 15.60 x 35 = Rs. 546

So, the correct answer is: Rs. 546

Explanation

3/100 x = 60

3x=60×100

3X=6000

X = 6000÷3

X = 2000.

Explanation

The cube root of a number is a value that, when multiplied by itself three times, gives the original number.

In this case, 4 × 4 × 4 = 64, so 4 is the cube root of 64.

Explanation

To find 25% of 150, multiply 150 by 0.25:

150 × 0.25 = 37.5.

Therefore, 37.5 is 25% of 150.

Explanation

To evaluate this expression, we need to follow the order of operations (PEMDAS):

• Multiply 2 and 25: 2 × 25 = 50
• Divide 50 by 5: 50 ÷ 5 = 10
• Add 10: 10 + 10 = 20
• Subtract 2: 20 - 2 = 18

So, the correct answer is: 18

Explanation

Let's denote the number as x. According to the problem:

45 = 0.72x

To find x, divide both sides by 0.72:

x = 45 / 0.72

x = 62.5

Explanation

To find 60 percent of 100, use the formula:

$$text{Percentage of a number} = left(frac{text{Percent}}{100}right) times text{Number}$$ $$= left(frac{60}{100}right) times 100 = 0.6 times 100 = 60$$