percentages Model Questions & Answers, Practice Test for ssc mts paper 1 2023

Answer: (a)

Marks of Supriyo = x marks

According to question

Mahuya marks = Supriyo marks – 10% of Supriyo marks

81 = x – 10% of x

$81 = x(1 - 10/100)$

81 = $9/10x ⇒ 810/9 = x$

x = 90 marks

Answer: (d)

Marks scored by Mathew

= 42 + 51 + 58 + 35 + 48 = 234

Max. Marks = 60 × 5 = 300

Percentage scored = $234/300 × 100$ = 78%

Answer: (e)

(72 – 56)% of x = 56

16% of x = 56

$x = 56 × 100/16 = 350$

70% of 350 = 245

Answer: (a)

Let 100 units be B's income and X units be B's expenditure

A's income = 60 units.

A's expenditure = 70X/100 units.

But 60 = 75/100 x X ⇒ X = 80.

i.e., B's saving = (100 – 80) units = 20 units.

Hence A's saving = $60 - 70/100 × 80$ = 4 units.

i.e., A's saving : B's saving = 4 : 20 = 1 : 5.

Answer: (b)

Let the monthly salary of A be x, monthly salary of B is (40000 – x).

Savings of A = (100 – 85)% of x = 0.15x

Savings of B = (100 – 95)% of (40000 – x)

= 0.05 (40000 – x)

0.15 x = 0.05 (40000 – x)

0.15x + 0.05x = 40000 × 0.05

0.2x = 2000

x = 10000