Robert Bosch Numbers Quiz-3

Solution
To fill = 1-\frac{3}{4} = \frac{1}{4}
Water needed = 48 \times \frac{1}{4} = 12liters

Solution
Let number = x
According to question
\frac{x}{4} +18 = 48
\frac{x}{4} = 48 - 18
x = 30 \times 4 = 120
\frac{1}{6} \times 120 = 20

Solution
Monthly PF
31000 \times \frac{2}{100} = 620
Yearly PF = 620 \times 12 = 7440

Solution

a+2 = 7
a= 7-2 = 5
a^{3} + a^{2} + 7a
5^{3} + 5^{2} + 7\times 5 = 185

Solution
Teamaker machine makes 15 cups of coffee in 30 minutes
Teamaker machine makes 1 cup of coffee in 2 minutes
Teamaker machine makes 240 cups of coffee in = 240 x 2 = 480 minutes = 8 hours

Solution
Let number =x
According to question
x+x \times \frac{1}{3} = 72
\frac{4x}{3} = 72
x=54
54 \times \frac{5}{2} = 135

Solution
Let number of male employees = x
Number of Female employees = \frac{2x}{3}
According to the question
x+\frac{2x}{3} = 270
\frac{5x}{3} = 270
x = 162

Correct Option: D

150% of 500 – 40% of 1650 = 4 × ?

⇒ (750 – 660) = 4 × ?

⇒ 90 = 4 × ?

⇒ ? = 22.5

Correct Option: D

22 × 25 + 27 – ? = 25% of 400

⇒ 550 + 27 – ? = 100

⇒ ? = 557 – 100

⇒ ? = 457

Solution

Remaining laptops = 1-\frac{2}{5} = \frac{3}{5}
Let Initial number of laptops = x
According to the question
x \times \frac{3}{5} = 1920[/latex]
\frac{3x}{5} = 1920[/latex]
x=3200