percentage Model Questions & Answers, Practice Test for ssc cgl tier 1

Answer: (d)

$740 × 75/100 × 3/5$ = 333

Answer: (e)

Fraction is $x/y$

∴ ${x + 200/100x}/{y + 150/100y}= 9/35$

${x + 2x}/{y + 1.5y} = 9/35$

${3x}/{2.5y} = 9/35$

$x/y = {9 × 2.3}/{3 × 35} = 3/14$

Answer: (a)

$\text"P - Q"/2 = \text"(P + Q)" × 30/100$

5(P – Q) = (P + Q) × 3

5P – 3P = 5Q + 3Q

2P = 8Q ⇒ P = 4Q

Q = $x/100$ × P

Q = $x/100$ × 4Q

${4x}/100$ ⇒ x = 25

Answer: (b)

40 % of boys = $20/2$

⇒ 40% of boys = 10 girls

Total no. of boys = 25

∴ Total number of students = 25 + 20 = 45

Answer: (d)

Let the total number of children = x

Then, $720/x$ = 20% of x = $20/100 × x = x/5$

$x^2$ = 720 × 5 = 3600

x = 60

∴ Each child receive = $720/60 = 12$ sweets